How is it possible for two neutral objects to become charged by rubbing them together? A. The binding force of the objects’ atoms overcomes the frictional force and their atoms become more tightly bound. B. The frictional force overcomes the atoms’ binding force, which releases an electron from the innermost orbit of one of the objects. C. There is no change in the objects. D. The frictional force overcomes the force that binds the electrons to the atoms, enabling the electrons to move elsewhere

Answers

Answer 1

Answer:

D. The frictional force overcomes the force that binds the electrons to the atoms, enabling the electrons to move elsewhere

Explanation:

Neutral objects becomes charged by rubbing them together due to the frictional force which overcomes the attractive force holding electrons together in an atom.

Friction is the resistance to flow or movement. When we rub bodies together, the movement of electrons becomes inhibited and this can cause an orbital electron loosely held in an atom to be pulled off as the force of friction increases. This mechanism would result in a body losing electron and another readily gaining that electron as they interact. The loss and gain of electrons causes a neutral body to become charged.

Answer 2

Answer:

its D

Explanation:


Related Questions

An ionic solid is placed in water. which information is described by the solubility product constant?

A. the amount of precipitate that will form from the ions
B.the temperature at which the solid and its ions reach equilibrium
C.the equilibrium between the solid and its ions in solution

Answers

Answer:

[tex]\boxed{\text{C. the equilibrium between the solid and its ions in solution}}[/tex]

Explanation:

[tex]\rm MX(s) $\, \rightleftharpoons \,$ M$^{+}$(aq) + $^{-}$(aq); $K_{\text{sp}}$ = [M$^{+}$][X$^{-}$]\\\\\text{$K_{\text{sp}}$ gives us information on}\\\\\boxed{\textbf{ the equilibrium between the solid and its ions in solution}}[/tex]

It tells us nothing about the amount of precipitate that will form or the temperature at which the equilibrium occurs.

Answer: Option (C) is the correct answer.

Explanation:

An ionic solid is defined as the solid in which atoms are chemically combined together due to transfer of electrons.

As all ionic substances are soluble in water. So, when an ionic solid is dissolved in water then it will dissociate into ions.

As a result, an equilibrium will be maintained between the solid and its ions into the solution.

For example, [tex]AB(s) \rightleftharpoons A^{+} + B^{-}[/tex]

                 [tex]K_{sp} = \frac{[A^{+}]}{[B^{+}]}[/tex]

where,    [tex]K_{sp}[/tex] = solubility product

Thus, we can conclude that the information described by the solubility product constant is that there is equilibrium between the solid and its ions in solution.

if you have 560 grams of magnesium. what mass of magnesium oxide will be produced?

Answers

Answer:

=933.3 grams

Explanation:

Magnesium reacts with oxygen producing magnesium oxide according to the following equation.

2Mg₍s₎ + O₂₍g₎→ 2MgO₍s₎

From the above equation, 2 moles of Magnesium produces 2 moles of magnesium oxide. Therefore the ratio of magnesium to magnesium oxide produced is 1:1

1 mole of magnesium oxide has a mass of: 24+16 =40 grams

560 grams of magnesium=560/24 moles

=70/3 moles.

Since the ratio is 1:1 the reaction produces  70/3 moles of magnesium oxide.

70/3 moles of MgO= 70/3 moles× 40 grams

=933.3 grams

Answer:

Here's what I get.

Explanation:

[tex]\begin{array}{lcccc}\textbf{(a)} \qquad \text{Na} & \text{reacts with} & \text{ diatomic chlorine}& \text{to form} & \text{sodium chloride}\\\textbf{(b)}\qquad \text{Na} & + & \text{Cl}_{2} & \longrightarrow \, & \text{NaCl}\\\textbf{(c)}\qquad \text{2Na}& + & \text{Cl}_{2} & \longrightarrow \, & \text{2NaCl}\\\end{array}[/tex]

(d) Mass of chlorine

(i) We know we will need an equation with masses and molar masses, so let’s gather all the information in one place.  

M_r:                  70.91      58.44

            2Na   +   Cl₂ ⟶ 2NaCl

m/g:                                   117

(ii) Calculate the moles of NaCl

[tex]\text{Moles of NaCl} = \text{117 g NaCl} \times \dfrac{\text{1 mol NaCl}}{\text{58.44 g NaCl }} = \text{2.002 mol NaCl }[/tex]

(iii) Calculate the moles of Cl₂

The molar ratio is (1 mol Cl₂ /2 mol NaCl)

[tex]\text{Moles of Cl$_{2}$}= \text{2.002 mol NaCl} \times \dfrac{\text{1 mol Cl$_{2}$}}{\text{2 mol NaCl}} = \text{1.001 mol Cl$_{2}$}[/tex]

(iv) Calculate the mass of Cl₂

[tex]\text{Mass of Cl$_{2}$} = \text{1.001 mol Cl$_{2}$} \times \dfrac{\text{70.91 g Cl$_{2}$}}{\text{1 mol Cl$_{2}$}} = \text{71.0 g Cl$_{2}$}\\\\\text{The mass of chlorine needed is } \boxed{\textbf{71.0 g Cl$_{2}$}}[/tex]

0.66y = 0.9x + 0.48 If y has a value of 108.45 what is the value of x?

Answers

Answer:

y=108.45

0.66y=0.9x+0.48

0.66*108.45 =0.9x+0.48

71.577=0.9x+0.48

71.577-0.48=0.9x

71.097=0.9x

x=71.097/0.9

x=78.99667


How many grams of chloride are found in 72.03mg of magnesium chlorate?

Answers

Answer:

26.73 mg.

Explanation:

Firstly, we can calculate the no. of moles of magnesium chlorate (Mg(ClO₃)₂):

no. of moles of magnesium chlorate (Mg(ClO₃)₂) = mass/molar mass = (72.03 mg)/(191.21 g/mol) = 0.377 mmol.

Every 1.0 mole of magnesium chlorate (Mg(ClO₃)₂) contains 2.0 moles of Cl.

∴ The no. of moles of Cl in magnesium chlorate (Mg(ClO₃)₂) = 2(0.377 mmol) = 0.754 mmol.

∴ The mass of Cl are found in 72.03 mg of magnesium chlorate (Mg(ClO₃)₂) = (no. of moles of Cl)(atomic mass of Cl) = (0.754 mmol)(35.453 g/mol) = 26.73 mg.

what is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide

Answers

Answer:

The empirical formula is V₂O

Empirical formula of a compound is the formula that shows the simplest whole number ratio of the atoms of elements in a given compound. Empirical formula is normally calculated when the mass of each element in a compound is known or the percentage composition by mass of each element in a compound is known.

Step by Step Explanation:

Step 1: Percentage composition of each element

Percentage composition=(mass of an element/ mass of the compound)100%

Mass of Vanadium = 20.38 g

Mass of the compound = 23.58 g

% composition of Vanadium = (20.38 g/23.58 g) 100%

                                                 = 86.43 %

Mass of Oxygen = 23.58 g -20.38 g

                           = 3.2 g

% composition of oxygen = (3.2/g/23.58 g) 100%

                                          =  13.57%

Step 2: Find the number of atoms of each element in the compound

Number of atoms  = percentage composition/ atomic mass

Atomic mass of Vanadium = 50.94 g/mol

Number of atoms of V = 86.43 /50.94

                                  = 1.6967

Atomic mass of oxygen = 16 g/mol

Number of atoms of O = 13.57/16

                                      = 0.8481

Step 3:  Find the simplest ratio of atoms

Vanadium : Oxygen

            1.6967 : 0.8481

= 1.6967/0.8481 : 0.8481/0.8481

= 2: 1

Whole number ratio = 2 : 1

Therefore; the empirical formula is V₂O

Answer:

[tex]V_2O[/tex]

Explanation:

Hello,

In this case, for the given vanadium oxide we have the general formula:

[tex]V_XO_Y[/tex]

Whereas both X and Y are determined as shown below:

- Find the mass percentage of both vanadium and oxygen:

[tex]\% V=\frac{20.38g}{23.58g}*100\%=86.43\% \\\% O=\frac{23.58g-20.38g}{23.58g}*100\%=13.57\%[/tex]

- Then the representative moles:

[tex]n_V=\frac{86.42}{51}=1.695\\n_O=\frac{13.57}{16}=0.8482[/tex]

- Finally X and Y:

[tex]X=\frac{1.695}{0.8482}=2\\\\Y=\frac{0.8482}{0.8482}=1[/tex]

Thus, the empirical formula is:

[tex]V_2O[/tex]

Best regards.

In an exothermic reaction the bonding energy of the product is:

less than the reactants
same as the reactants
greater than the reactants
dependent upon the presence of a catalyst

Answers

greater than the reactants because it gives product +heat

Answer:

less than the reactants

Explanation:

Since the reaction is exhotermic, meaning that they have already released energy in the bonding, the product is releasing heat energy, and the reactants were not, so the products would have less bonding energy than the reactants.

Which statements describe polyatomic ions? Check all that apply.

Polyatomic ions have many charges.
Polyatomic ions have one overall charge.
Polyatomic ions repel other ions to form ionic bonds.
Polyatomic ions attract other ions to form ionic bonds.
Polyatomic ions are made up of only one type of atom.
Polyatomic ions are made up of two or more types of atoms.

Answers

Answer:

B, D, F

Explanation:

The polyatomic ion statements are

- Polyatomic ions have one overall charge.

- Polyatomic ions are made up of two or more types of atoms.

- Polyatomic ions are ions composed of two or more atoms that are covalently bonded together and carry an overall electrical charge due to the loss or gain of electrons.

- They have one overall charge because the entire molecule gains or loses electrons to become an ion.

- Polyatomic ions are composed of two or more types of atoms, usually including both nonmetals and sometimes a central metal atom.

Complete Question:

Which statements describe polyatomic ions? Check all that apply.

- Polyatomic ions have many charges.

- Polyatomic ions have one overall charge.

- Polyatomic ions repel other ions to form ionic bonds.

- Polyatomic ions attract other ions to form ionic bonds.

- Polyatomic ions are made up of only one type of atom.

- Polyatomic ions are made up of two or more types of atoms.

Recognizing the Properties of Water
Water has a "bent" geometry. Which explanation
does not explain why?
o Water's oxygen has unbonded electron pairs
that repel each other.
Water can form hydrogen bonds.
Electrons are evenly distributed in the water
molecule.
DO NE

Answers

The first option does explain waters bent geometry. The Oxygen atom in water has two pairs of unbonded electrons. They are repelling each other. Water can form hydrogen bonds due to the electron distribution not the geometry. However the last statement is more untrue. Electrons are drawn to the more electronegative atom which is oxygen so that where they spend the most time.

Therefore the last one being untrue does not explain the geometry.

Answer:

1. c

2.b

Explanation:

How many moles of sodium chloride can react with 18.3 liters of fluorine gas at 1.2 atmospheres and 299 Kelvin?

Answers

Answer:

1.79 mol.

Explanation:

For the balanced reaction:

2NaCl + F₂ → 2NaF + Cl₂.

It is clear that 2 mol of NaCl react with 1 mol of F₂ to produce 2 mol of NaF and 1 mol of Cl₂.

Firstly, we can get the no. of moles of F₂ gas using the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm (P = 1.2 atm).

V is the volume of the gas in L (V = 18.3 L).

n is the no. of moles of the gas in mol (n = ??? mol).

is the general gas constant (R = 0.0821 L.atm/mol.K),

T is the temperature of the gas in K (299 K).

∴ no. of moles of F₂ (n) = PV/RT = (1.2 atm)(18.3 L)/(0.0821 L.atm/mol.K)(299 K) = 0.895 mol.

Now, we can find the no. of moles of NaCl is needed to react with 0.895 mol of F₂:

Using cross multiplication:

2 mol of NaCl is needed to react with → 1 mol of F₂, from stichiometry.

??? mol of NaCl is needed to react with → 0.895 mol of F₂.

∴ The no. of moles of NaCl needed = (2 mol)(0.895 mol)/(1 mol) = 1.79 mol.

Carbon (C): 1sH2sI2pJ H = I = J =

Answers

Answer:H=2 I=2 J=2

Explanation:

Answer:

H= 2

I= 2

J=2

Explanation:

Just did this answer on ingenuity. :)

What is the correct name for the compound CoCl3?

a) cobalt(I) chloride

B) cobalt(I) chlorate

C) cobalt(II) chlorate

D) cobalt(III) chloride

Answers

Answer:

D) Cobalt (III) chloride.

Explanation:

It is an unstable compound in which the cobalt atoms have a formal charge of +3.

It could be stable but at very low temperatures, while at high temperatures it is found as a gas.

I hope this answer helps you.

Cobalt(III) chloride, often known as cobaltic chloride, is an elusive and unstable cobalt and chlorine chemical with the formula CoCl₃. The cobalt atoms in this combination have a formal charge of +3. Here the correct option is D.

Due to its special characteristics, cobalt chloride (CoCl₃) is a chemical substance that is frequently utilized in scientific study. It is a crystalline solid that is pinkish-red and soluble in ethanol and water. Cobalt ions, which are necessary for the growth and development of both plants and animals, can be found in cobalt chloride.

Cobalt(III) chloride, often known as cobaltic chloride, is an elusive and brittle cobalt and chlorine chemical with the formula CoCl₃. The cobalt atoms in this combination have a formal charge of +3.

Thus the correct option is D.

To know more about Cobalt(III) chloride, visit;

An experiment is conducted to see if cats preferred skim milk or 2% milk. A cup of skim milk
was put out for 5 kittens and then measured how much the kittens drank over the course of a
day. Following a cup of 2% milk was purout for the skittens and then masured how much the
kittens drank over the course of a day. The same kittens were used and the milk was served at
the same temperature. It was discovered that the cats liked the 2% milk more than the skim
milk. What is the dependent variable in this experiment?​

Answers

its milk you cant do the experiment with out it.

Answer:

the quantity of milk drank by the kittens

Explanation:

Dependent variables are the actual variables a researcher sets out to determine during the course of an experiment. In order words, dependent variables are variables that are measured during experiments whose values fluctuate with the change of other variables.

In this case, a change in the type of milk given to the kittens affected the quantity of milk drank by the animals.

The actual variable being measured in this experiment is the amount to milk drank by the kittens.

Hence, the dependent variable is the quantity of milk drank by the kittens.

In a molecule of two electron dot structures describe the bond equally well?

Answers

Answer:

The correct answer for this is: [tex] O _ 3 [/tex].

Explanation:

It is in a molecule of O3 that the two electron dot structures describe the bond equally well.

The [tex] O _ 3 [/tex] molecule is called trioxygen and more commonly known as ozone. It is a pale blue colored gas having a strong pungent smell.

This inorganic molecule is widely used in the oxidation process in the industries as well as consumer application.

PLEASE HELP ASAP
which of the following are examples of chemical changes
-silver tarnishes
- a sheet of copper is pounded into the shape of a bowl
- barium melts at 725° C
- Hydrogen reacts with oxygen to form water

Answers

Answer:  Hydrogen reacts with oxygen to form water

Explanation:   Chemical changes are those which changes the identity of the chemical nature of any substance.

Thus out of the given options , the correct one is the formation of the water molecule when hydrogen reacts with oxygen as it is changing the identity of hydrogen and oxygen atoms to form a molecule of water.

The rest of the three options belongs to the category of the physical changes in which the chemical nature of any substance has not been changed but only the properties which an be easily observed can be changed.

Which are causes of mechanical weathering? Check all that apply.
O
acid rain
O plant growth
O animal actions
O carbon dioxide
O pressure release​

Answers

Plant growth and pressure release !

Answer: Plant growth, animal actions and pressure release

Explanation:

The weathering is a process of disintegration of rocks into small pieces and sediments. This is caused by chemical or physical agents.

Mechanical weathering is also called as physical weathering. It is caused by the physical activities on the surface of rocks. The following are the examples of mechanical weathering.

1. Plant growth: The plants which grows over the surface of rocks, their roots may penetrate the rocks which causes the disintegration or rocks.

2. Animal actions: The animals may exert their pressure over the surface of rocks. They may create burrows like rat or mice inside the rocks.

3. Pressure release: The rock which was under pressure, instantly if pressure released, the structure of rock will become unstable, this may lead to the disintegration of the rock.

How much heat is released when you condense 93.9 g of water vapor?

Show work please ❤️

Answers

Answer:

211.9 J

Explanation:

The molecules of water release heat during the transition of water vapor to liquid water, but the temperature of the water does not change with it.

The amount of heat released can be represented by the formula:

[tex]Q=mL_e[/tex]

where [tex]Q[/tex] = heat energy, [tex]m[/tex] = mass of water and [tex]L[/tex] = latent heat of evaporation.

The latent heat of evaporation for water is [tex]L=2257 kJ/kg[/tex] and the mass of the water is [tex]m=93.9 g=0.0939 kg[/tex].

The amount of heat released in this process is:

[tex]Q=mL_e = (0.0939kg)(2257 kJ/kg)=[/tex] 211.9 J

Which of the following describes work?
holding a 1 kg mass for 1 hr
holding 1 kg mass
moving 1 m in 1 hr
lifting a 1 kg mass 1 m

Answers

Answer:

lifting a 1 kg mass 1 m.

Explanation:

Work is the result of applying a force that manages to move a mass.

Thus, the work (mechanical work in this case because this is a mechanical force, not an electrical one) applied by a constant force is the product of the force times the distance that the object is moved.

Also, you can calculate the mechanical work as the difference in the mechanical energy between the initial and the final stages of the event where the force was applied.

Let's see each choice:

a) Holding a mass for 1 hr: since no translation is involved, displacement is and the work is zero.

b) Holding 1 kg mass: again, no motion is involved, so there is no work.

c) Moving 1 m in 1 hr: there is not force involved in this statement, so there is not work.

d) lifting a 1 kg mass 1 m: this, indeed, describes a situation where work results from applying a lifting force to move a mass 1 m up.

In this case, such work is equal to the change in the potential energy of the mass: mgΔh = 1kg × 9.8m/s² × 1 m = 9.8 joules.

Answer:

D lifting a 1 kg mass 1 m

Explanation:

Took the test and got 100%

Which is a substance that is made up of only one type of atom?
O compound
O element
solution
O mixture

Answers

Answer:

compound

Explanation:

Final answer:

An element is the type of substance that is made up of only one type of atom. It cannot be broken down further into other types of substances. Compounds and mixtures, on the other hand, contain more than one type of atom.

Explanation:

The substance that is made up of only one type of atom is an element. An element is a pure substance that cannot be broken down into other types of substances. Each element is made up of just one type of atom. Examples of elements include Oxygen(O), Hydrogen(H), or any substance on the periodic table of elements. On the other hand, a compound is a substance that is made up of more than one type of atom bonded together. An example of this is water (H₂O), which consists of hydrogen and oxygen atoms. Lastly, a mixture is a combination of two or more elements or compounds which have not reacted to bond together, and each component in the mixture retains its original properties.

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Charles’s law states that _____.

Answers

The volume of a given mass of gas is directly proportional to its temperature provided the pressure remains constant

Charles's law states that the volume of a gas is directly proportional to its Kelvin temperature when the pressure is constant.

Charles's law states that the volume of a given amount of gas is directly proportional to its temperature in the Kelvin scale, as long as the pressure remains constant.

This means that if you increase the temperature of a gas, its volume will also increase proportionally, and vice versa, provided that the pressure does not change.

We can express this relationship mathematically as V/T = constant, where V is the volume and T is the temperature in Kelvin.

For example, if you have a balloon filled with air, and you heat it, the balloon will expand because the volume of the gas inside the balloon increases with temperature.

In summary, Charles's Law helps us understand how gases behave under different temperatures, making it an important principle in the study of gases and their properties.

Which substance is a compound iron or nitrogen oxide

Answers

I think it might be Nitrogen dioxide, but please check behind

Answer:

Nitrogen oxide is compound.

Explanation:

Compound is defined as chemical substance made up two or more than two different elements. For example : NaOH is the compound made up of 1 sodium atom, 1 oxygen atom and 1 hydrogen atom.

Now, according to the question, out iron and nitrogen oxide. Nitrogen dioxide (NO)is a compound because its made up of one nitrogen atom and 1 oxygen atom.

Where as iron is not a compound because it is just composed of iron atoms only.

What is the magnitude of the force of gravity between to 1000 kg cars which are separated by distance of 25. 0 km on an interstate highway? The force between the two cars will be what

Answers

Answer:

=1.068 ×10⁻¹³N

Explanation:

Force of gravity =Gm₁m₁/d² where G is the universal gravitation constant =G = 6.673 x 10-11 N m²/kg², m₁ and m₂ is the mass of object 1 and 2 respectively and d is the distance between them. First we change the distance into SI units i.e meters 25 km= 25000 m

F= (6.673 x 10⁻¹¹ N m²/kg²×1000 kg×1000 kg)/ (25000 m)²

=1.068 ×10⁻¹³N

Final answer:

The magnitude of the force of gravity between two 1000 kg cars separated by 25.0 km is 1.067 × 10^-6 Newtons, using Newton's law of universal gravitation.

Explanation:

To calculate the magnitude of the force of gravity between the two 1000 kg cars separated by 25.0 km, we can use Newton's law of universal gravitation, which is expressed by the formula:

F = G × (m1 × m2) / r2

Where:

F is the force of gravity between the two masses,G is the gravitational constant (6.674 × 10-11 N × (m/kg)2),m1 and m2 are the masses of the two objects, and r is the distance between the centers of the two masses.

Putting in the given values:

F = (6.674 × 10-11 N × (m/kg)2) × (1000 kg × 1000 kg) / (25,000 m)2 = 1.067 × 10-6 N

Thus, the force of gravity between the two cars is extremely small, 1.067 × 10-6 Newtons, which is consistent with the fact that the gravitational force is very weak at such distances and with masses as small as that of cars.

WHICH OF THE FOLLOWING WILL RESULT FROM INCREASING THE TEMPERATURE OF A GAS - APEX

Answers

Answer:

it will stay a gas

Explanation:

by heating up a gas you are making sure the gas stays a gas

what is internal energy is

Answers

Answer:

According to Brittanica, "Internal energy [is] the property or state function that defines the energy of a substance in the absence of effects due to capillarity and external electric, magnetic, and other fields."

Chains of amino acids make which can join together to make a

Answers

Answer:

Polypeptide chain

Yes the answer would be a polypeptide chain!

what is geography and importance of geography

Answers

Answer:

Meaning; Geography is a focus within the curriculum for understanding and resolving issues about the environment and sustainable development. It is also an important link between the natural and social sciences. As pupils study geography, they encounter different societies and cultures.

Importance; Geography is important because it contributes to our knowledge of the world and its phenomena. But, it also has an amazing practical side. For economists and managers, some types of engineering, farmers, architects, geopoliticians, generals and some knowledge of Geography is extremely important.

brainiest plz

Explanation:

Answer:

Geography is the physical features of places and landmarks around the globe.

Explanation:

Geography is important because it marks where places are, and geography can help you find you way.

Gravity is a force that helps to hold the universe together.

Answers

Final answer:

Gravity is an ever-present, attractive force that holds together the Universe, from maintaining our footing on Earth to influencing the motions of galaxies and beyond. It is defined by Newton's law of gravitation and further explored in the theory of general relativity.

Explanation:

Gravity is a fundamental force of nature that is always attractive, causing objects with mass to be pulled toward each other. Even though gravity is the weakest of the four fundamental forces, it plays a crucial role in structuring the Universe. From binding us to the surface of Earth to keeping planets in orbit around the Sun, and even holding galaxies together, gravity is essential for the existence and movement of celestial bodies. Newton's universal law of gravitation states that gravitational force is directly proportional to the masses of the objects involved and inversely proportional to the square of the distance between their centers. On a cosmic scale, gravity is the dominant force and is important for understanding the interactions of matter in space and time. Additionally, in the realm of general relativity, gravity is responsible for curving space and altering the flow of time near massive bodies like stars.

Which energy transformation occurs in the core of a nuclear reactor?
nuclear energy mechanical energy
nuclear energy thermal energy
thermal energy nuclear energy
mechanical energy nuclear energy

pls help there is a similar question on here I just need the answer dummed down

Answers

Nuclear energy to thermal energy

Answer:

option B

Explanation:

The correct answer is option B

A nuclear reactor is a device which is used to control and initiate the chain reaction. It is basically used in for power generation which can be used for many other purposes like electricity generation etc.

The energy transformation occurs in the core of a nuclear reactor is from nuclear energy to thermal energy.

1.74 A flask contains a 30.0 mL sample of acetone (nail polish remover) that weighs 23.6 grams.
What is the density of the acetone?​

Answers

Answer:

ρ = 0.787 g/cm³

Explanation:

1 mL= 1 cm³

30.0 mL= 30 cm³

Density = mass/volume

The mass provided in the question= 23.6 grams

Volume= 30.0 cm³

Thus density= 23.6 grams/ 30.0 cm³

=0.787 g/cm³

If required in kg/ m³ the density will be calculated as follows.

There are 1000 g in 1 kg thus the density =

=0.787 g/cm³ ×1000

=787 kg/m³

If 10.5 L of a gas at 0.98 atm has its pressure increased to 1.50 atm, what is the new volume?

Answers

Answer:

The new volume of this gas is 6.86 liters.

Assumption: the temperature of this gas stays the same, and this gas is ideal such that Boyle's Law applies.

Explanation:

By Boyle's Law, the volume of an ideal gas shall be inversely proportional to the pressure on it when temperature stays the same (as in an isothermal process.)  

In other words,

[tex]\displaystyle V \propto \frac{1}{P}[/tex],

where

[tex]V[/tex] is the volume of the gas, and[tex]P[/tex] is the pressure on the gas.

[tex]P_1 \cdot V_1 = P_2 \cdot V_2[/tex].

[tex]\displaystyle V_2 = \frac{P_1 \cdot V_1 }{P_2}[/tex].

Assume that this gas is ideal. Also assume that this increase in pressure is isothermal. Apply Boyle's Law to find the new volume of this gas:

[tex]\displaystyle V_2 = \frac{P_1 \cdot V_1 }{P_2} = \rm \frac{0.98\;atm \times 10.5\; L}{1.50\; atm} = 6.86\; L[/tex].

An atom has atomic number 5 and mass number 11. How many protons does the atom have? 5 6 10 11

Answers

The atom having 5 as the atomic number, and 11 has the mass number have 5 protons. Thus, option A is correct.

What is mass number?

In an atom, the nuclei consists of protons and neutrons. The sum of the protons and neutrons in an atomic nuclei determines its mass number.

The atomic number of an atom is the number of protons in an atom. Thus, the number of protons in an atom in 5. Hence, option A is correct.

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what are social problems give three examples of social problem in today's society What are the benefits of belonging to a youth organization or club? what is the percent of change from 85 to 64? round to the nearest percent The function g(x) = 3x - 12x + 7 written in vertex form is g(x) = 3(x - 2)2 5. What is the vertex of g(x)?A(-6, -5)B (-2,-5)C. (2,-5)D (2,-5) How successful has the United States been in achieving its goals in Iraq and Afghanistan? A line passes through the points (8,-1) and (-4,2). What is the y intercept of the line ? What are the various treatments for the different diabetic conditions? Which table represents a linear function with a greater y-intercept than that of the function represented in the graph?A. x y0, 36, -39B. x y-2, 0 0 ,2C. x y0, 55, -45D. x y-2, 1 0, 4E. x y0, -74 ,11 Two factors of 48 have a difference of 19. The factor with a greater absolute value is positive. What is the sum of the factors? the united states formally enetered world war 2 following the Japanese attack on TINSTAAFL stands for "There is no such thing as a free lunch". Question 8 options: True False Which value describes the desire to be ones own boss? A. autonomyB. statusC. securityD. entrepreneurship The princes of Europe believed that they were no longer obligated to remain under the authority of the Church. The idea of another Christian church, one outside of the pope's authority, had financial appeal as well. Many European leaders began to seize church property and place it under the authority of the state.Based on the text, why did another Christian church appeal to European princes?It would allow them to make religious decisions.It would give them authority over people.It would allow them to expand their lands.It would allow them to influence the pope. What organizational pattern is used in this example find the solution of this system of equations -6y=-50-4x 5x-6y=-49 Which values of P and Q result in an equation with exactly one solution? Px -43= -42x+Q. Choose all answers that apply. A. P= 42 and Q = 42. B. P= 43 and Q = -42. C. P= -43 and Q = -43. D.P = 42 and Q= 43 I NEED ASAP PLZZZ Why is the mountain goat known as the poor man's cow?A. It is a cheap source of food.B. It is smaller than a cow.C. It looks like a cow. Ralph and Waldo start in towns that are 70 miles apart and travel in opposite directions for 4 hours. Ralph travels15 miles per hour faster than Waldo. Let w stand for Waldo's speed and write algebraic expressions to answer thefollowing questionsa. How far did Waldo travel?milesb. What was Ralph's speed?mphC. How far did Ralph travel?miles d. What is the distance between Ralph and Waldo after the 4 hours?miles Solve the following system of equations, 3x +5y+2-0 what is the rise over run Steam Workshop Downloader