(text multiple choice) nonmetallic oxide + base → salt +

A.  The United States can produce enough food to feed all the people in the world. is your best answer, and is the only logical answer.

It is the only answer that actually has the word "food" in it, and is a direct result of farming technological advances.

~

The answer is B. When you increase the pressure, you compress the gas to a fraction of its original volume.

I would decrease by a third of the orgin. volume.

Nuclear reactions involve changes in the nucleus of an atom, while chemical reactions involve a transfer or sharing of electrons. The energies released in nuclear reactions are much greater than those in chemical reactions. Nuclear reactions are not affected by changes in environmental conditions, unlike chemical reactions.

Nuclear reactions differ from chemical reactions in several ways. In chemical reactions, atoms become more stable by participating in a transfer or sharing of electrons. On the other hand, nuclear reactions involve changes in the nucleus of an atom, resulting in the production of a different element. The energies released in nuclear reactions are much greater than those involved in chemical reactions. Additionally, nuclear reactions are not significantly affected by changes in environmental conditions, such as temperature or pressure.

Strontium atom loses 2 electrons to become an ion with 2 electrons lesser than its atom. Your answer is C.

Answer: The answer is B hydrochloric acid and Lithium hydroxide

Explanation:

A reaction between B - hydrochloric acid and lithium hydroxide produced lithium chloride.

A reaction between an acid and a base is called neutralization. A salt is formed, which contains the cation provided by the base and the anion provided by the acid.

A reaction between an acid and a base produced lithium chloride (LiCl). What acid and base combination could produce this salt?

A reaction between B - hydrochloric acid and lithium hydroxide produced lithium chloride.

Learn more: https://brainly.com/question/16459826

Answer:

The dust and gas particles of a slowly rotating nebula gradually came together to form a cloud with a huge central bulge surrounded by a flat ring of dust and gas. The sun was formed from the material in the bulge. The flat ring became several rings. In each ring, a planet formed and continued to revolve around the sun in the plane of the ring it came from.

Explanation:

321.8 g CaF2

321.5 g Al2(CO3)3

The equation for the reaction is;  

3 CaCO3 + 2 AlF3 → 3 CaF2 + Al2(CO3)3  

Number of moles of CaCO3 will be;

=(412.5 g CaCO3) / (100.0875 g CaCO3/mol)

= 4.12139 mol CaCO3  

Number of moles of AlF3 will be;

= (521.9 g AlF3) / ( 83.9767 g AlF3/mol)

= 6.21482 mol AlF3

But;

4.12139 moles of CaCO3 would react completely with 4.12139 x (2/3) = 2.74759 moles of AlF3.

Thus; there is more AlF3 present than that, so AlF3 is in excess, and CaCO3 is the limiting reactant.  

Therefore;

Mass of CaF2 will be;

(4.12139 mol CaCO3) x (3/3) x (78.0752 g CaF2/mol) = 321.8 g CaF2  

Mass of Al2(CO3)3 on the other hand will be;

(4.12139 mol CaCO3) x (1/3) x (233.9903 g Al2(CO3)3/mol) = 321.5 g Al2(CO3)3

When 412.5 g of calcium carbonate reacts with 521.9 g of aluminum fluoride, approximately 322.1 g of CaF₂ and 345.5 g of Al₂(CO₃)₃ can be produced.

The reaction is:

CaCO₃ + AlF₃ → CaF₂ + Al₂(CO₃)₃

First, let's write the balanced equation:

3CaCO₃ + 2AlF₃ → 3CaF₂ + Al₂(CO₃)₃

Now, let's calculate the number of moles of each reactant:

n(CaCO₃) = 412.5 g / 100.09 g/mol = 4.12 mol n(AlF₃) = 521.9 g / 83.98 g/mol = 6.22 mol

Since the reaction requires 3 moles of CaCO₃ for every 2 moles of AlF₃, the limiting reactant is CaCO₃.

Now, let's calculate the number of moles of each product:

n(CaF₂) = 4.12 mol (CaCO₃) × (3 mol CaF₂ / 3 mol CaCO₃) = 4.12 mol n(Al₂(CO₃)₃) = 4.12 mol (CaCO₃) × (1 mol Al₂(CO₃)₃ / 3 mol CaCO₃) = 1.37 mol

Finally, let's calculate the mass of each product:

m(CaF₂) = 4.12 mol × 78.07 g/mol = 322.1 g m(Al₂(CO₃)₃) = 1.37 mol × 258.99 g/mol = 354.5 g

So, 322.1 g of CaF₂ and 354.5 g of Al₂(CO₃)₃ can be produced.

i am confused

heat or temperature

but according to me the answer is heat

Answer: temperature

Explanation:

Thermal energy is the energy possessed by an object by virtue of its temperature. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.

Thermal energy refers to the sum of kinetic, potential, vibrational ,electronic and rotational energies of the object.

Heat is the thermal energy which is transferred from a body at higher temperature to a body at colder temperature.

Temperature of an object is the measure of hotness or coldness of n object.

Solute: koolaid mix , Sugar

Sovlent: water

Water acts as a solvent in our Kool-aid, dissolving the sugar plus Kool-aid powder. A solute plus a solvent make up a solution.

A solute plus a solvent make up a solution. The thing that dissolves in the solvent is called the solute. Solubility is the measure of a solute's ability to dissolve in a solvent. For instance, salt is the solute and water is the solvent in a saline solution.

The chemicals present in lesser concentrations are solutes, whilst the substances present in greater abundance are the solvent in solutions with components within the same phase. In the case of air, the solutes are the gases of oxygen and carbon dioxide, while the solvent is the gas of nitrogen. Water acts as a solvent in our Kool-aid, dissolving the sugar plus Kool-aid powder.

Therefore, water acts as a solvent in our Kool-aid, dissolving the sugar plus Kool-aid powder.

To learn more about solution, here:

https://brainly.com/question/10829073

#SPJ6

Answer:Amonia is consumed in the reaction.

Explanation:

According to the Le-chatieler principle by decreasing the volume on reactant side the products(amonia) will collide and will shift the reaction to the reverse side ,hence the amonia is consumed.

A. Marbles placed inside a hollow sphere are used to describe protons in a nucleus.

it would be A because the other options are just the tools used in an experiment and A is actually using other objects

Scientific modeling has been the process of using charts and tables to represent ideas. It can be used to show marbles placed inside the hollow sphere to show the proton arrangement. Thus, option A is correct.

Scientific modeling has been defined as the use of graphical and conceptual topics, systems, ideas, and processes to understand and identify patterns based on scientific knowledge. It allows a better understanding and explanation of the topic.

Marbles used to describe the proton arrangement inside the hollow sphere are the best example of scientific modeling as it uses marbles to represent protons with a positive charge to show their arrangement inside the nucleus of the hollow atom.

Therefore, option A. marbles placed inside the sphere show scientific modeling.

Learn more about scientific modeling, here:

https://brainly.com/question/1462653

#SPJ2

Ecopsychology is what it sounds like: a hybridization between the field ofpsychology (the study of human behavior and the soul) and that of ecology (the relationship of organisms to one another and to their physical surroundings1). studies the relationship between a person's mental health and the environment.

Answer: Saliva, sweat, pee, and dander (dead skin cells) can all trigger allergies. Pet fur also traps mold, pollen, and other outdoor allergens that make you sneeze and your eyes water.

Explanation:

Answer:

A

Explanation:

it is number 4 heat and pressure during metamorphism

Hey there!

The correct answer is A. Hot, Cold

Heat always travels from HOT to COLD

Hope this helps you!

God bless ❤️

xXxGolferGirlxXx

Heat always travels from hot to cold, the answer is A.

D could be a answer

Answer:

carbon dioxide

Explanation:

the rest are mixtures

A chemical substance is composed of one type of atom or molecule.

For ideal gas, there is no attraction between its molecules. But for real gas molecules, there are attractive forces in between molecules. Those are called Van der Waals forces.

To determine which gas particles are more strongly attracted to each other, you can compare two different gases at constant pressure but different temperatures.  Because of the Van der Waals forces, the increase in volume due to temperature will be smaller than what is predicted by the ideal gas law.  The larger the difference from the ideal gas law's prediction, the larger the intermolecular attractive force is.

Answer:

Explanation:

another way to look at it - for gases within the same group, the larger the attractive force, the closer the gas molecules can get together; i.e. the higher the gas density.

for example, for Group VII Halogens gases, the further down the gas, the higher its gas density: I2 > Br2 > Cl2 > F2. The Van der Waal force is also dependent on the gas masses. That means higher gas density indicates stronger attractive force.

When you ride a bicycle, several things happen that require energy and it's transformation. You pedaling the bike is transforming chemical energy, supplied by the breakdown of the food you eat, into mechanical energy to turn the pedals. The chemical energy is potential and the mechanical energy is kinetic.

Answer:

162.0 g.

Explanation:

The solubility of NaNO₃ in 100.0 g of water at 10.0°C is 81.0 g/ 100 g water.

Using cross multiplication:

81.0 g of NaNO₃ form saturated solution at 10.0°C in → 100.0 g of water.

???? g of NaNO₃ form saturated solution at 10.0°C in → 200.0 g of water.

∴ The grams of NaNO₃ form saturated solution at 10.0°C in 200.0 g of water = (81.0 g)(200.0 g)/(100.0 g) = 162.0 g.

Answer:

I belive it would be 162.0 grams

Explanation:

Answer:

Explanation:

Proteins are made up of amino acids. Amino acids are the simply the monomeric units of proteins. An amino acid is bifunctional in that it carries an amino group(-NH₂) and a carboxyl group(-COOH) attached to a carbon atom in a molecule.

Amino acids can form long polyamide chains that makes up proteins. A peptide bond binds an amino group of the first amino acid molecule with the carboxyl group of the second amino acid molecule.

Proteins are high polymers made up of one or more peptide chains.

Answer:

25.6 %.

Explanation:

% Cl = [Atomic mass of (Cl)/molar mass of KClO₄] x 100 = [(35.5 g/mol)/(138.55 g/mol)] x 100 = 25.62 % ≅ 25.6 %.

1. Centi

Prefix meaning one-hundredth (.01).

2. Decimal system

A system of numeration that is based on units of 10.

3. Kilogram  

The basic measure of mass in the metric system.

4. Kilo

Prefix meaning one thousand (1,000).

5. Liter  

The basic measure of volume in the metric system.

6. Measurement  

Finding the size, quantity, or amount by comparing with a standard.

Final answer:

The terms centi-, decimal system, kilogram, kilo-, liter, and measurement are related to the metric system, used for specifying measurements using prefixes like centi- for one-hundredth and kilo- for one thousand. These prefixes help in measuring various sizes using the decimal system.

Explanation:

The terms to be matched with their definitions are related to the metric system and its units of measurement. Here is the matched list:

Centi-: Prefix meaning one-hundredth (.01).

Decimal system: A system of numeration that is based on units of 10.

Kilogram: The basic measure of mass in the metric system.

Kilo-: Prefix meaning one thousand (1,000).

Liter: The basic measure of volume in the metric system.

Measurement: Finding the size, quantity, or amount by comparing with a standard.

A metric ruler is a common tool for measuring metric lengths such as millimeters and centimeters. Metric prefixes such as centi- and kilo- simplify the process of measurement by providing a range of units that correspond to various powers of ten. This means larger or smaller quantities can be measured efficiently, using suitable units like centimeters for small lengths and kilometers for large distances.

Answer:

119.7 mL.

Explanation:

PV = nRT.

where, P is the pressure of the gas.

V is the volume of the container.

n is the no. of moles of the gas.

R is the general gas constant.

T is the temperature of the gas (K).

P₁V₁/T₁ = P₂V₂/T₂.

∴ V₂ = (P₁V₁T₂)/(T₁P₂) = (100.0 mmHg)(1000.0 mL)(273.0 K)/(296 K)(760.0 mmHg) =  121.4 mL.

False. For example, changing climates will mean that some areas that experience harsh weather will soon being to experience milder weather. :)

Answer: True

Explanation:

Global warming is a natural phenomena associated with increase in the global temperatures worldwide due to abundance of greenhouse gases in the atmosphere. These greenhouse gases like carbon monoxide, carbon dioxide, nitrogen dioxide are added into the atmosphere by the human activities like burning of fossil fuels and deforestation. It is concerned with many negative side effects like melting of glaciers, loss of biodiversity due to increase in global heat, increase in incidences of human diseases like asthama, hypertension.

The answer for your question is the first one

The moon accelerates because it is continuously increasing its speed of orbit

Need to divide by Avogadro’s number which is 6.022*10^23

(2.47 * 10^22 molecules)/(6.022*10^23 molecules) = 0.041 mole

To find the number of moles in 2.47 x 10^22 molecules of water, divide the number of molecules by Avogadro's number (6.02 x 10^23). The result is approximately 0.0410 moles.

The subject of your question is in the field of Chemistry, specifically in stoichiometry and the mole concept. You're interested in finding the number of moles in 2.47 x 1022 molecules of H2O (water). To tackle this, we use Avogadro's number, which states that one mole of any substance contains 6.02 x 1023 particles (atoms, molecules, ions, etc.).

To solve this, you divide the number of molecules by Avogadro's number:

2.47 x 1022 molecules / 6.02 x 1023 molecules/mole = 0.0410 moles.

So, there are roughly 0.0410 moles in 2.47 x 1022 molecules of H2O.

https://brainly.com/question/20483253

#SPJ2

Air is a mixture of gases (and some dust) because the gases (oxygen, nitrogen, carbon dioxide, etc.) do not combine chemically into other compounds. Just like a mixture of salt & pepper doesn't combine into some other thing.  

The mixture is homogenous if it consists only of gases. If dust is mixed in the mixture is heterogeneous (dust is solid matter, gas is gas) A heterogenous mixture is one of different types of matter.  

Separating one gas from the other is different for each gas and a complicated matter.

Answer:  Air is a homogeneous mixture of gases.

Explanation:  Mixture is a composition in which 2 or more substances are present together without making a chemical bond or a chemical compound between them.

Thus Air qualifies itself as mixture because there are several number of gases present in different composition and different proportions. These gases do not combine with each other to form a chemical compound between them.

Homogeneous mixture is the mixture in which the phase of the mixture is just single phase and it is not possible to separate the components. Thus Air is a homogeneous mixture and its component can never be separated because it forms a single phase.

Answer:

1249.88 mol.

Explanation:

∵ no. of moles of Fe = mass of Fe/atomic weight of Fe.

∴ no. of moles of Fe = (6.98 x 10⁴ g)/(55.845 g/mol) = 1249.88 mol.

cellular respiratory.

Hope that helps! :)

Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.

Answer:

proton and electrons orbit close together around a center nucleus

Answer:

a

Explanation: