CHEMISTRY HIGH SCHOOL

An ionic solid is placed in a beaker of water. Which of the following occurs when there is a strong attraction between the solute and the solvent?A. The solute melts.
B. The solute dissolves.
C. The solute remains intact.
D. The solute reacts to form a precipitate.

Answers

Answer 1
Answer:

Answer: Option (B) is the correct answer.

Explanation:

An ionic solid is a substance which has ionic bonds, that is, formed by the transfer of electrons.

Ionic bonds have strong force of attraction because ionic solids have opposite charges which strongly attract each other.

When we dissolve ionic solid in a beaker of water, it completely dissociate into its ions because polar molecules or solutes dissolve in polar solvents.

For example, when NaCl is dissociated into ions then the reaction is as follows.

          NaCl \rightarrow Na^(+) + Cl^(-)

Thus, we can conclude that when an ionic solid is placed in a beaker of water then the solute dissolves in it.
Answer 2
Answer: The answer is B. the solute dissolves. The ionic solid has attraction between ions and when there is strong attraction between solute and solvent, the ion will separate and dissolve in water.

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Explain why neon is monatomic but chlorine is diatomic.

Answers

Chlorine is a halogen and all halogens and oxygen, nitrogen and hydrogen are diatomics

Explanation:

Neon is in group 8/0, which means that it has a full outer shell. Atoms react to get a full outer shell but as neon already has a full outer shell, it doesn't react and stays monatomic.

However, chlorine is in group 7, so it needs 1 more electron to complete its outer shell, two chlorine atom share one electron each with each other so they have full outer shells. This is why chlorine is diatomic.

A mixture of uneven distribution and easy separation is called_____. homogeneous heterogeneous a solution a pure substance

Answers

the correct answer is heterogeneous.

Answer:

heterogeneous

Explanation:

The noble-gas notation for tin (Sn) will contain the symbol

Answers

The noble gas notation is as follows- you must start with the noble gas that is before the element which in this case is Krypton and then from there you continue the electron configuration as follows- [Kr] 5s^2 4d^10 5p^2

its Kr on edg. i just took the pretest

Ground water has some minerals dissolved in it. If you heat this water, collect the vapor in another container, and then cool it, you will get pure, or distilled, water. What makes this process a physical change?It forms a new substance (minerals), which is a physical change.

It forms a new substance (water vapor), which is a physical change.

It changes the color of water, which is a physical change.

It changes the molecular structure of water, which is a physical change.

It separates dissolved substances, which is a physical change.

Answers

Answer: the last choice, It separates dissolved substances, which is a physical change.

Explanation:

Physical changes do not modify the composition of the substances.

The substances that undergo a physical change do not brake or form chemical bonds, they just modify ther appearance: the size, the physical state (solid, liquid, or solid), the density, the shape, that kind of properties.

The salts dissolved and the water will have the same chemical propertiesin solution and after being separated, so they have not had a chemical change, they have only changed their appearance, so this explains why it is a physical change.
nah bruh its the last option. that's the only one that could even be just a physical change. E

Which of the following statements describes a scientific law?a. A scientific law explains a set of events.
b. A scientific law describes what occurs every time in a situation.
c. A scientific law is constantly modified.
d. A scientific law is developed without experimentation.

Answers

The correct answer is B.

scientific law which describes what occurs every time in a situation. Scientific law always applies under same condition.


Laws differs from scientific theory because they does not posit explanation of phenomena.

Different laws takes mathematical forms. Scientific law is being associated with natural science but social sciences also contains laws.


A good example of scientific law in social sciences is Zipf's law.

Answer:

B. a law is a proven fact that cannot be changed.

Explanation:

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Answers

Answer:

Just go out there and be yourself brother!

Explanation:

If she doesn't like you, she doesn't like the real you, therefore you don't deserve her! lol
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