Answer:
Halogen group (group 17)
Hope it helps:)
An atom of an element with atomic number 48 in mass number 120 contains how many electrons
Answer:
48
Explanation:
So all we have to consider here is the atomic number. Remember that in a neutral atom the amount of electrons = the amount of protons.
Also that the atomic number = the number of protons.
So we can say that in an atom with atomic number 48, there are 48 protons and therefore 48 electrons.
An atom of an element with an atomic number of 48 and mass number of 120 contains 48 electrons, indicating that it is a neutral atom. The number of neutrons can be determined by subtracting the atomic number from the mass number, which in this case, gives 72 neutrons.
Explanation:The atomic number of an element 48 in this case, defines the number of protons in its nucleus and also, in a neutral atom, the number of electrons. Therefore, an atom of an element with an atomic number of 48 contains 48 electrons. The mass number (120) is the sum of the number of protons and neutrons in the atom's nucleus. To find the number of neutrons, we subtract the atomic number from the mass number (120-48), which gives us 72 neutrons.
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what is the most active non metallic element in group 16
Oxygen is the most active non-metallic element in Group 16 of the periodic table, also known as the oxygen family. This is primarily due to its small atomic size relative to other elements in the group.
Explanation:The most active non-metallic element in Group 16 of the periodic table is oxygen. Group 16 elements are also known as the oxygen family. These elements become less active as you move down the group due to an increase in atomic size, which contributes to a decrease in electronegativity. Among the members of this group, oxygen has the smallest atomic size, making it the most active nonmetal in this group. Examples of other elements in this group are sulfur, selenium, tellurium, and polonium, but oxygen is significantly more reactive.
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What are the characteristics of cardiac muscle?
Answer:
Cardiac muscle cells are found only in the heart, and are specialized to pump blood powerfully and efficiently throughout our entire lifetime. Four characteristics define cardiac muscle tissue cells: they are involuntary and intrinsically controlled, striated, branched, and single nucleated.
Explanation:
Cardiac muscle is a specialized type of muscle tissue found only in the heart. It has a striated appearance, is under involuntary control, contains intercalated discs for coordinated contraction, and is highly endurance.
Cardiac muscle is a specialized type of muscle tissue found only in the heart. It has unique characteristics that allow it to efficiently contract and relax, enabling the heart to pump blood throughout the body.
Some key characteristics of cardiac muscle include:
Striated appearance: Cardiac muscle has a striped or striated appearance due to the arrangement of contractile proteins.Involuntary control: Unlike skeletal muscle, cardiac muscle is under involuntary control, meaning we cannot consciously control its contractions.Intercalated discs: These structures are found between adjacent cardiac muscle cells and help transmit electrical impulses, ensuring that the heart contracts as a coordinated unit.Endurance: Cardiac muscle is highly resistant to fatigue and can maintain contractions for extended periods of time.Learn more about Characteristics of Cardiac Muscle here:https://brainly.com/question/34360003
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Help!! us own words, please!!
Question:
Explain the law of conservation of energy. Give a specific example using kinetic and potential energy that shows how energy is conserved.
Answer:
energy can neither be created nor be destroyed but it can only change from one form to another or transfer from one to another object this is the simplest way of understanding the law of conservation of energy. In simple line its the transfer of energy only.
so now the potential energy is the energy that is in stored form while kinetic energy is that energy which an object contain due to any particular motion.
like a ball is thrown in air so the energy through which it goes upward is kinetic energy and for downward movement of ball it need another energy which is potential energy(in the stored form) and by using this energy it goes downward.
The movement of thermal energy is controlled by _____. the laws of thermodynamics the specific heat of substances the production of greenhouse gases the circulation of the atmosphere
Answer:
I'm pretty sure that the answer is D.
Consider the reaction of hydrogen gas with chlorine gas: H2 + Cl2 → 2HCl 4 molecules of hydrogen gas react with 6 molecules of chlorine gas. 4 molecules of hydrogen gas in this reaction will produce 8 molecules of HCl. 6 molecules of chlorine gas in this reaction will produce 12 molecules of HCl. Which statement BEST describes the role of hydrogen in this chemical reaction? A) Hydrogen is in excess. B) Hydrogen serves as a catalyst. C) Hydrogen is the limiting reactant. D) Hydrogen inhibits the rate of reaction.
Answer:
C. Hydrogen is the limiting reactant
Explanation:
Mole ratios are determined using the coefficients of the substances in the balanced chemical equation of reaction.
H2 + Cl2 -----> 2HCl
1mol:1mol 2mol
1mol of H2 reacts with 1 mole Cl2 to produce 2 moles of HCl.
From the above question, the amount of moles for H2 and for Cl2 are given as well as the amount of HCl each will produce.
We know the following now:
•1 mole of H2 gives 2 moles of HCl. •Thus, 4 molecules of H2 will produce 8 molecules of HCl.
•4 molecules of Cl2 will also produce 8 molecules of HCl.
•Likewise, 6 molecules of Cl2 will produce 12 molecules of HCl
•6 molecules of H2 will also produce 12 molecules of HCl BUT we do not have 6 molecules of H2!! We have only 4!! (From the question) .
This makes us short of H2 molecules. That is, the amount of H2 is in limited supply, which makes H2 the limiting reactant while Cl2 is in excess.
Therefore, we can only make 8 moles of HCl instead of 12 moles.
The best statement which describes the role of hydrogen in this chemical reaction is that hydrogen is the limiting reactant.
Answer:
C) the reactant in excess produces the greatest amount of product.
Explanation:
The statement that is NOT true is that the reactant in excess produce the greatest amount of product. The key to production is the limiting reactant. Reactants in excess have nothing to react with!
The solvent in a solution evaporates out over time, leaving behind the solute.
Why is this a mixture?
Select all that apply.
Distillation is a separation method that uses evaporation.
The solution is made up of the solvent and solute.
The solvent and solute are separated by physical means.
The solute does not evaporate because it is heavy.
Answer:
The solution is made up of the solvent and solute.
The solvent and solute are separated by physical means.
Explanation:
Any mixture must have a solvent and solute, or else it can't be classified as a mixture.
Additionally, I took a test and debated between the "distillation" and "physical means" problem, and got the "distillation" one wrong. It does make sense; evaporation is a physical mean through which the solvent is separates from the solute, even if it isn't caused by humans.
The 4th one just sounds absurd, and I would be shocked if it were correct.
4. What is one important assumption about the properties
ht assumption about the properties of an ideal gas under the kinetic-
molecular theory of gases?
a) All ideal gases have the same molar mass or molecular weight
b) Ideal gases all have the same partial pressure in a mixture of gases
c) The collision of ideal gas molecules is assumed to be perfectly elastic
d) Ideal gas properties have no effect on the behavior of ideal gases
5. Convert 34 degrees Celsius to temperature expressed as Kelvin.
a) -239. Kelvin
b) 134 Kelvin
c) 93.2 Kelvin
d) 307 Kelvin
4)
Under the kinetic-molecular theory of gases, one important assumption about the properties of an ideal gas is that the collision between gas molecules is perfectly elastic. This means that during collisions, there is no net loss or gain of kinetic energy. The gas molecules simply exchange energy, changing direction and speed, but the total energy of the system remains constant.
This assumption is crucial in understanding the behavior of ideal gases because it helps explain various gas properties, such as the relationship between pressure, volume, and temperature. The perfectly elastic collisions allow the gas molecules to freely move and exert pressure on the walls of the container.
5)
To convert degrees Celsius to Kelvin, you simply add 273.15 to the temperature in Celsius.
In this case, to convert 34 degrees Celsius to Kelvin, you would add 273.15:
34 degrees Celsius + 273.15 = 307.15 Kelvin
Therefore, the temperature expressed as Kelvin is 307 Kelvin.
Mushrooms, bread molds, and yeasts are classified together in the fungi kingdom. Specivic
characteristics are used to classify these organisms. Which of the following is a characteristic
used to classify these organismis as fungi?
A. They are parasites.
B. They are unicelular.
C. They are prokaryotes,
D. They are heterotrophs
Answer:
D They are heterotrophs
Explanation:
All fungi are eukaryotes, and most are muticellular. Only the fungi called yeasts are unicellular. Fungi are heterotrophs.
HOPE THIS HELPS! HAVE A GREAT DAY!! :)
Mushrooms, bread moulds, and yeasts are classified as fungi based on the characteristics of being D. heterotrophs.
Explanation:An important characteristic used to classify mushrooms, bread moulds, and yeasts as fungi is that they are heterotrophs. Heterotrophs are organisms that obtain their nutrients by consuming other organic matter. In the case of fungi, they obtain their nutrients through extracellular digestion, breaking down organic materials externally and absorbing the nutrients.
This is in contrast to autotrophic organisms, which can produce their own food through processes like photosynthesis. Thus, are organisms that cannot produce their own food and rely on consuming other organisms or organic matter. They encompass a wide range of species, from herbivores that eat plants to carnivores that prey on other animals, and even decomposers that feed on dead organic material.
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when a chemical change occurs, what do you know about the amount of matter in the new substances? what is this known as?( is it suppose to be a science question)
Explanation:
The law of conservation of mass states that the total mass of the products is equal to the total of the reactants.
A chemical change occurs because of a chemical reaction.
In a chemical reaction, the reactants are the starting substances and the products is the finishing substances. The amount of each type of atoms to start with and end with are also equal.
No matter disappears after a chemical reaction.
Answer:
The amount of matter in the new substances is the same as the original.
This is known as the law of conservation of mass.
Final answer:
In a chemical change, the law of conservation of matter indicates that the total amount of matter remains constant, with atoms being rearranged but not created or destroyed.
Explanation:
When a chemical change occurs, the amount of matter in the new substances remains unchanged according to the law of conservation of matter. This fundamental principle asserts that during any chemical reaction, matter is neither created nor destroyed. Instead, the atoms are simply rearranged to form new substances. Therefore, the number and type of atoms present after a chemical change are the same as those before the change took place.
The formation of new substances implies that one kind of matter is transformed into a different kind. Although the properties and appearance might change significantly, the total mass remains constant. For everyday chemical reactions, any mass changes are too negligible to measure, and thus the law holds true. However, in nuclear reactions, which involve changes to the nucleus of an atom, the energy changes can be significant enough to result in detectable mass changes. In such cases, the laws of conservation of matter and energy are considered in a combined way to reflect that the total quantity of matter and energy is fixed.
Which geological features MOST LIKELY prompted the development of the theory of plate tectonics?
A) river deltas
B) glacier fields
C) mountain ranges
D) tropical rainforests
Answer:
c.mountain ranges
Explanation:
scientists wondered how they where formed and came to the conclusion that they might be forced upward by movement of the earths crust
Answer:
mountain ranges
Explanation:
The world's tallest mountain ranges form when pieces of Earth's crust—called plates—smash against each other in a process called plate tectonics, and buckle up like the hood of a car in a head-on collision.
1. (NH)2CrO-
a) Number of moles of H:
b) Number of moles of N:
2. Ag.SO.
a) Molar Mass:
b) Percent Composition of Ag:
c) Percent Composition of S:
d) Percent Composition of O:
Question:
1. (NH)2CrO
a) Number of moles of H:
b) Number of moles of N:
Answer:
a) Number of moles of H: 2
b) Number of moles of N: 2
Explanation:
The [tex](NH)_2CrO[/tex] is ammonium Chromate which is monoclinic and yellow Crystal that is formed due to the reaction of ammonium Hydroxide and ammonium di-chromate. It is used as catalyst, corrosion inhibitor as well as analytical inhibitors.
Question:
2. Ag.SO.
a) Molar Mass:
b) Percent Composition of Ag:
c) Percent Composition of S:
d) Percent Composition of O:
Answer:
a) Molar Mass: 155.93 Kg
b) Percent Composition of Ag: 69%
c) Percent Composition of S: 20.5%
d) Percent Composition of O: 10.2%
Explanation:
Molar mass = molar mass of Ag + molar mass of S + molar mass of O
=>107.87+32.06+16
=> 155.93 Kg
Percent Composition of Ag
= [tex]\frac{ \text{mass due to Ag}}{\text {total molar mass}} \times 100[/tex]
= [tex]\frac{107.87}{155.93} \times 100[/tex]
= 0.69 \times 100
= 69%
Percent Composition of S:
= [tex]\frac{ \text{mass due to S}}{\text {total molar mass}} \times 100[/tex]
=[tex]\frac{32.06}{155.93} \times 100[/tex]
= 0.205 \times 100
= 20.5%
Percent Composition of O:
= [tex]\frac{ \text{mass due to O}}{\text {total molar mass}} \times 100[/tex]
= [tex]\frac{16.00}{155.93} \times 100[/tex]
= 0.102 \times 100
= 10.2%
The specific heat of zinc is 0.39 J/g*°C. How much energy needed to change the temperature of 34g of zinc from 22°C to 57°C. Is the energy absorbed or released? 464.1 J, absorbed 464.1 J, released 928.2 J, absorbed 928.2 J, released
Answer:
464.1 J absorbed.
Explanation:
Given data:
Specific heat of zinc = 0.39 J/g°C
Mass of zinc = 34 g
Temperature changes = 22°C to 57°C
Energy absorbed or released = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 57°C - 22°C
ΔT = 35°C
Q = m.c. ΔT
Q = 34 g. 0.39 J/g°C. 35°C
Q = 464.1 J
how many feet are there in58 yards ?
PLEASE MARK BRAINLIEST!
Answer:
To find how many feet their are in 58 yards, you have to multiply 58 yards by 3, because their are 3 ft per yard.
Explanation:
58 * 3 = ?
58 * 3 = 174 feet
Your answer is 174 feet.
I hope this helps!
Which state of matter expands when heated and is easy to compress? gas solid liquid
Answer:
gas
Explanation:
The gas molecules are far apart and as such, when heated they gain more kinetic energy thereby colliding with one another and with the wall of the container thereby exerting pressure and also they can be compressed by reducing the distance between between the molecules.
Matter is anything that is made up of atoms. Matter can be solid, liquid or gas. Out of solid, liquid and gas, gas is the matter that expand on heating and compressed on cooling.
What is matter?Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Anything around us that can be physically seen and touched are matter.
The intermolecular forces of attraction between the particles is highest in solid and lowest in gas. So, gas can be easily expand by increasing temperature. As the temperature increases the randomness between the particles also increases and hence particles move apart and expand. On decreasing pressure or temperature the randomness of particles decreases and hence particles comes closer and get compressed.
Thus out of solid, liquid and gas, gas is the matter that expand on heating and compressed on cooling
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Order the bond angles of the molecules or ions from smallest to largest: O3+, O3, O3-
Answer:
O3+, O3, O3-
Explanation:
O3- has the highest bond angle because it has the highest electro negative value. Increase in electronegativity leads to increase in bond angles so as to minimize interelectronic repulsion between the electrons. Decrease in electronegativity leads to decrease in bond angle because the repulsion is minimized.
In general, the more electronegative an ion is, the larger the bond angle. The more electropositive an ion is, the smaller the bond angle. Hence cations are smaller than anions.
The bond angles of O3+, O3, and O3- can be ordered as O3- < O3 < O3+ from smallest to largest based on electron geometry and electron-electron repulsion.
Explanation:When ordering the bond angles of O3+, O3, and O3- from smallest to largest, we must consider the electron geometry of each molecule/ion. In general, bond angles tend to decrease as the number of non-bonding electron pairs increases, due to the increased electron-electron repulsion.
In the case of O3+, it has fewer non-bonding electron pairs than neutral O3, leading to greater bond angles. O3, or ozone, has a bent molecular geometry, with a bond angle of roughly 117 degrees. O3-, or the ozone ion, has more non-bonding electrons, which will reduce the bond angle.
So, the bond angles would most likely be ordered as follows: O3- < O3 < O3+.
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Four atoms of hydrogen combine with one carbon atom to form CH4, but only two hydrogen atoms combine with one oxygen atom to form H2O. Why?
Answer:
because its water
Explanation:
Answer:
Hydrogen has one valence electron, Atoms may share electrons in order to fill their electron shells, Oxygen has two vacancies in its electron shell, but carbon has four vacancies.
Explanation:
i jus did it on study island :P
An indicator of average kinetic energy is
temperature
o volume
O pressure
diffusion
A
ACK COR HELP
Answer:
Temperature is an indicator of average kinetic energy
Explanation:
Temperature of any substance is proportional to the average kinetic energy associated with the random motion of the atoms or molecules from which substances are formed.
In the final chemical equation, HF and O2 are the products that are formed through the reaction between H2O and F2. Before you can add these intermediate chemical equations, you need to alter them by multiplying the
A.second equation by 2 and reversing the first equation.
B.first equation by 2 and reversing it.
C.first equation by (1/2) and reversing the second equation.
D.second equation by 2 and reversing it.
Answer:
Option A: Second equation by 2 and reversing the first equation
Explanation:
In order for the equation to become balanced by elements, dividing the second equation by 2 and then reversing the first equation to simplify the equation correctly is how you can then add the intermediate chemical equations. Took the test on edg and it was correct :)
In the final chemical equation, HF and O₂ are the products that are formed through the reaction between H₂O and F₂. Before you can add these intermediate chemical equations, you need to alter them by multiplying the second equation by 2 and reversing it and the correct option is option D.
What is a Chemical Equation?A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side
They provide brief information about the amount of chemicals participating in a reaction.
In the given reaction,
Multiplying the second equation by 2 gives -
2H₂ + 2F₂ = 4HF
And then reversing it and adding to the first one gives -
4HF = 2H₂ + 2F₂
2H₂ + O₂ = 2H₂O
The hydrogens on both the sides cancel out and we are left with
4HF + O₂ = 2H₂O + 2F₂
Therefore, In the final chemical equation, HF and O₂ are the products that are formed through the reaction between H₂O and F₂. Before you can add these intermediate chemical equations, you need to alter them by multiplying the second equation by 2 and reversing it and the correct option is option D.
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Why is it important to have a control group in an experimental investigation?
Answer:to see how it effects
Explanation:
a control group provides a baseline for the experiment, shows how the independent variable influenced the experiment and influenced the outcome. a control group provides a comparison for the experiment
which element belongs to the P^6 -block of the periodic table
Answer:
The P6 block of the periodic table is the block that belong to the noble gases. The noble gases in P6 block are: Helium, neon, argon, krypton, xenon and radon
Explanation:
P-block elements in periodic table is non-metals. The elements which belongs to p⁶ block are noble gases, i.e., helium, neon, argon, krypton, xenon and radon.
What are noble gases?Nobel gases are inert gases having completely filled orbitals. Hence they are normally unreactive. Noble gases are non-metals and exists in gaseous state.
Noble gases are termed as p⁶ elements because, their valence p orbital is completely filled by 6 electrons. Therefore the noble gases helium, neon, argon, krypton, xenon and radon are termed as p⁶ block elements.
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beryllium be and chlorine cl form a binary ionic compound with a one to two ratio of beryllium ions to chloride ions. the formular for the compound is?
Answer: BeCl2
Explanation:
Be + Cl2 —> BeCl2
Answer:BeCl2
Explanation:
Reaction between Beryllium (Be) a di-ionic cation and Chlorine a mono-ionic forms BeCl2.
1. A sample of aluminum absorbs 50.1 J of heat, upon which the temperature of the sample increases from 20.0°C to 35.5°C. If the specific heat of aluminum is 0.900 J/g- °C, what is the mass, in grams, of the sample?
Answer:
Mass of aluminium in sample = 3.591 g ≅ 3.6 grams
Explanation:
Given that, A sample of aluminum absorbs 50.1 J of heat, upon which the temperature of the sample increases from 20.0°C to 35.5°C.
the specific heat of aluminum is 0.900 J/g- °C
The relation between heat absorbed and change in temperature is given by, Q = msΔT.
where Q = heat absorbed
m = mass of the substance
s = specific heat of substance
ΔT = change in temperature
Now, in our case, Q = 50.1 J ; s = 0.900 J/g- °C; ΔT= 35.5-20 = 15.5°C
⇒ m = [tex]\frac{Q}{s(T_{2} -T_{1}) }[/tex]
⇒ m = [tex]\frac{50.1}{0.900(15.5)}[/tex] = 3.591 g ≅ 3.6 g
⇒ m ≅ 3.6 g
To calculate the mass of the aluminum sample, the heat absorbed was divided by the product of the specific heat capacity of aluminum and the change in temperature, resulting in a mass of approximately 3.59 grams.
Explanation:To find the mass of the aluminum sample, we'll use the following specific heat formula:
Q = mcΔT
Where:
Q is the heat absorbed, in joules (J)m is the mass of the substance, in grams (g)c is the specific heat capacity, in J/g°CΔT is the change in temperature, in °CFrom the question:
Q = 50.1 JΔT = 35.5°C - 20.0°C = 15.5°Cc for aluminum = 0.900 J/g°CRearranging the formula to solve for mass (m), we get:
m = Q / (cΔT) = 50.1 J / (0.900 J/g°C × 15.5°C)
Calculating the mass of the aluminum gives us:
m = 50.1 J / (13.95 J/g) ≈ 3.59 grams
Would it be C???? Please I need help
Answer: option C.
Explanation: aldehyde has a functional group R—CHO
Can you someone do my chem homework. I will pay $$$. I attached a question
Answer:
Acid-Base
Combustion
Combination
Decomposition
Explanation:
(1) KOH is acid and HBrO is a base which reacts to form water , thus it is an example of acid-base reaction.
(2) In the reactants Oxygen gas is used , whenever Oxygen comes in a reaction it is an example of Combustion reaction as the other reactant starts burning.
(3) Here two reactant combines to produce a single product , thus it is an example of Combustion Reaction.
(4) Here A single reactant decomposes to form two products in this reaction , thus it is an example of Decomposition Reaction.
Flammability is a material’s ability to burn in the presence of
Answer:
Flammability is a material’s ability to burn in the presence of oxygen.
Explanation:
Flammability can be described as the ability of a substance to get ignited. Flammability will lead to fire or combustion. Some substances are highly flammable like Benzene. Other tend to be just flammable. And there are also compounds which will nor be flammable at all as they won't react with oxygen. Examples of these substances include helium, steel or glass.
The flammability of a substance shall be considered a very important aspect when storing or transporting a substance.
How many molecules are in 6.38g of H2O?
Answer:
x = 2.2*10^23 molecules of H2O
Explanation:
H = 1g
O = 16g
H2O = 1g*2 + 16g
H2O = 18g = 1 mol of H2O
18 g___1 mol of H2O
6.38g__ x = 0.354 mol of H2O
1 mol______6.22*10^23 molecules
0.354 mol__x = 2.2*10^23 molecules of H2O
A miner working 260m below sea level opened a carbonated soft drink during a lunch break. To his surprise, the soft drink tasted rather "flat." Shortly afterward, the miner took an elevator to the surface. During the trip up, he could not stop belching. Why?
Answer:
Explanation:
The process of dissolving carbon dioxide in water and soft drinks is called carbonation, when there is a fizz, the carbon dioxide escapes from the water as an effervescence.
Due to the increase in atmospheric pressure in the mine, the ability of the dissolved carbon dioxide in the drink to escape is reduced, this accounts for why the drinks tastes flat.
When the miner gets to the ground surface, the atmospheric pressure becomes normal, so in the miner's stomach the carbon dioxide in the soft drink escapes and this results in the miner's continuous belching.
How do you identify the cation and anion in an ionic compound?
Answer:
Based on whether an element is a metal or non-metal, or their charge if given.
Explanation:
Cations are positively charged ions. Elements that are metals become positively charged.
Anions are negatively charged ions. Elements that are non-metals become negatively charged.
To identify the cation and anion in an ionic compound, name the cation first and the anion second without including the word 'ion'. If the cation can have multiple charges, include either the oxidation number according to the Stock system or use -ous/-ic suffixes in the classical system. The formula must reflect a balance of total positive and negative charges to ensure electrical neutrality.
To identify the cation and anion in an ionic compound, you follow specific nomenclature rules. The name of the ionic compound is written with the cation name first, followed by the anion name, without using the word ion for either. For example, to name Ba(NO₃)₂, you would call it barium nitrate, naming the metal barium as the cation followed by the anion nitrate.
When a cation has more than one possible charge, the compound is named either using the Stock system, which includes the cation's oxidation number, or by using the classical system, which includes the Latin-based name of the cation with the suffix -ous or -ic. For instance, FeCl₃ is named iron(III) chloride in the Stock system or ferric chloride in the classical system because iron can have multiple oxidation states.
To determine the correct number of ions for the formula, the overall charge of the compound must be neutral. This means the total positive charge of the cations must balance the total negative charge of the anions. Thus, writing the chemical formula involves deducing the correct ratio of ions so that their charges cancel each other out.
Millikan measured the quantity of charge carried
by an electron. How did he then calculate the
mass of an electron?
Answer:
m = E × Q
And Q = I × t
m = E × I × t
Where m = mass in grams
Q = quantity of electricity in coulomb
I = current in ampere
t = time in seconds
E = electrochemical equivalent of the substance
Explanation: