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Answer:

Explanation:

Why are compounds, such as NaCl, more stable than the elements that make them up?

the driving force for chemical reaction is that elements and compounds wil react until they produce more stable matter,

Na metal and Cl2 are very reactive.   When they react with each other they become more stable as the Na+ and Cl− ions

Answer:

Play what exactly???????

Answer:

V = volume, usually in Litres

n = number of moles, in mol

R = the gas constant, which should be 8.33 J*K /mol

T = is the temperature, but in kelvin (if its in Celcius, you convert it)

lemon juice

fry rice

biryani

lassi

slime etc

Answer:

127889

i think

Explanation:

An atom that has been present in the little finger and has been in its present form since the  beginning of the universe is the element calcium.

The human body, just like every other thing in the universe is composed of atoms. An atom is the smallest particle of a substance that can take part in a chemical reaction.

An atom that has been present in the little finger and has been in its present form since the  beginning of the universe is the element calcium. Calcium is found in abundance in human extremities.

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Answer:

# of electron shells

Explanation:

Elements in the same periodic group have the same number of electron shells.

Solubility refers to the ability of substances to dissolve in a solvent. Of the gases listed here, that which would most likely dissolve in water is;

Carbon dioxide is a gas that has a very high solubility in water. When bubbled through water, 99% of the gas dissolves while 1% of the gas comes off as carbonic acid.

The solubility of carbon dioxide increases with an increase in pressure and decreases with an increase in temperature.

Therefore, option A is correct.

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Answer:

d

Since there are 6 electrons and it's neutral, that means there are also 6 protons to balance it out. They said there's 6 neutrons. The atomic mass is the total of protons and neutrons so 6+6=12

Answer:

Heavy stars turn into supernovae, neutron stars and black holes whereas average stars like the sun end life as a white dwarf surrounded by a disappearing planetary nebula. All stars, however, follow roughly the same basic seven-stage life cycle, starting as a gas cloud and ending as a star remnant.

Answer:  Consider the equilibrium of the generalized acid,  HX , in aqueous solution….

HX(aq)+H2O(l)⇌H3O++X−  

As we FACE the page, the given reaction, with FORMIC acid,  HC(=O)OH , produces ONLY millimolar concentration with respect to hydronium ion, and acetate ion … and thus, as anticipated, formic acid is a WEAK acid…. pKa=3.79 .

i.e.  Ka=(0.004∙mol∙L−1)20.10∙mol∙L−1−0.004∙mol∙L−1=1.60×10−4  

pKa=−log10(1.60×10−4)=−(−3.79)=+3.79  

….formic acid is nevertheless a STRONGER acid than acetic acid, for which  pKa=+4.76 .

Explanation:

from the 19 protons

Answer:

+19

Explanation:

potassium, k, has 19 protons, 20 neutrons, and 19 electrons. what is the charge of the atom’s nucleus?

since only neutrons and protons are in the nucleus, the overall charge in the nucleus is +19 from the 19 protons

Answer:

3,079.23

Explanation:

Answer:

2nd option

Hope this helps!

Answer:

using liquid carbon dioxide to produce oils or other forms.

Explanation:

Answer: The answer is B, C, and E.

Explanation:

Pls, mark me brainliest.

Displacement can be defined as the difference between a starting point and an ending point. Displacement is a measurement that includes direction and is measured as a straight line between a starting point and an ending point. Therefore, option (2), (3), and (5) are correct.

The displacement of an object can be described as the change in the position of an object. The displacement is the minimum length between the initial and the final point.

The displacement is the vector quantity posses both distance and magnitude. Therefore, the measurement of the displacement includes direction.

Displacement can also be described as the difference between a starting point and an ending point. Displacement can be measured as a straight line between a starting point and an ending point.

The S.I. unit of the displacement is the same as the distance i.e. meters and the C.G.S. unit are centimeters.

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Answer:

An atom contains equal numbers of protons and electrons .

Answer:

Electron bonds break and reattach to other atoms

Explanation:

Most chemical reactions involve the breaking of bonds

Answer:

A.Catalyst

Explanation:

the correct answer is A

Answer:group 4 and 5

Explanation: it is because they are the smallest class of elements containing only 6 elements

Human devices use potential energy to store energy, whereas kinetic energy is potential energy in motion. Both types of energies can be measured in Joules (J).

Human devices generate and use different sources of energy, which can be classified into renewable sources (e.g., solar, hydraulic, winds, etc) and non-renewable sources (e.g., nuclear energy) of energy.

For example, a hydroelectric power plant transforms the potential energy stored in water reservoirs (e.g., a lake) into mechanical energy (a type of kinetic energy) when this energy is released from the water reservoir and flows through a turbine.

Subsequently, this type of kinetic energy is then used to generate electricity.

On the other hand, a nuclear power plant uses the potential energy that is stored within the nuclei of atoms to produce kinetic energy by a process known as nuclear fission.

This process (nuclear fission) releases energy in the form of heat (i.e., thermal energy).

Subsequently, this type of kinetic energy (heat) is used to generate steam, which then moves turbines to generate mechanical energy and finally generates electricity.

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Answer:

it's properties would remain untouched though it's Changing physically

Answer:

If I think this is the same question then the answer is "scientists still debate this"

Explanation: First of all I just took the test. and second light can be both a particle and a wave because of quantum mechanics, I believe einstein came up with the idea.

Answer:

it boils a liquid to create condomsation

Explanation:

Answer:

Distillation refers to the selective boiling and subsequent condensation of a component in a liquid mixture. It is a separation technique that can be used to either increase the concentration of a particular component in the mixture or to obtain (almost) pure components from the mixture. The process of distillation exploits the difference in the boiling points of the components in the liquid mixture by forcing one of them into a gaseous state.

Explanation: