Chemistry Middle School

Hi! Which of the following decreases kinetic energy of solvent molecules? ( I need this handed in quickly!)
A. Decreasing the pressure
B. Not stirring the solution
C. Decreasing the contact area between solvent and solute

When a drop of water sits on a leaf, It looks like it has a skin. What is this “skin” a result of? Explain.

What does adding soap do in terms of dissolving solutes? Explain.

Which solution will contain a higher concentration of iodide ions, 0.25 mol/L calcium iodide or .45 mol/L potassium iodide?

Thank you so much! I hope you have a great day!❤️

Answers

Answer 1

Answer:

c

Explanation:

Answer 2

According to the forces of attraction, decreasing the contact area between solvent and solute decreases kinetic energy of solvent molecules.

What are forces of attraction?

Forces of attraction is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

Learn more about forces of attraction,here:

https://brainly.com/question/23841038

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Answer: x + 20

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In your own words name two types of acids and two types of bases. Describe how each are used..

Answers

Answer:

Acids sulfuric acid, hydrochloric acid. Bases ammonia water, sodium hydroxide.

Explanation:

Answer:

Acids sulfuric acid, hydrochloric acid. Bases ammonia water, sodium hydroxide.

Explanation:

HELPPPPP
Which item is made from a basic ingredient?

answer choices

Soda

Wine

Leafy vegetables

Toothpaste

Answers

Answer:

Leafy vegetables?

Explanation:

If by a basic ingredient you mean a single ingredient then the answers is leafy vegetables

What is true in a saturated solution?
A. No more solute can be dissolved.
B. No more solution can be made.
C. The concentration cannot be decreased.
D. No more solvent can be dissolved.

Answers

Answer:

A ) because no more solute can be dissolved

The correct answer is A

Let’s say there are 2 planets similar in size, but one has much more mass. How will that affect the number of moons?

Answers

Answer:

0 because no value of mass at to be same

No value of mass is the same

Please answer this!!!!!!!!!!!!!

Answers

What’s the question?

Answer:

oo ok and please i like your pfp

PLS HELP!! WILL GIVE BRAINLY!!

Answers

Answer:

2. Mechanical

3. Chemical

4. Mechanical

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9. Mechanical

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Explanation:

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