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3 years ago

15

Which is the best example and explanation that a physical change has occurred?

1 answer:

Feliz [49]3 years ago

7 0

Rip King von like to send love to their family 63-63= von

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What is a solution in chemistry

Hatshy [7]

Solutions are a type of mixture.

A solution is a homogeneous mixture of particles so small that they cannot be seen and cannot be filtered out.

Definition: Homogeneous mixture looks the same.

I grabbed these from my science notes, hope this helps.

4 0

2 years ago

What is the density of a sample of a substance with a volume of 120ml<br> and a mass of 90g?

tigry1 [53]

Answer:

<h3>The answer is 0.75 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 90 g

volume = 120 mL

We have

$density = \frac{90}{120} = \frac{9}{12} = \frac{3}{4} \\$

We have the final answer as

<h3>0.75 g/mL</h3>

Hope this helps you

6 0

2 years ago

Dr. Maxwell performed several experiments which seem to indicate that eating chocolate is always bad for your health. How should

svetoff [14.1K]

D. They should try to reproduce Dr. Maxwell's research to verify his results

3 0

3 years ago

Read 2 more answers

Which of the following are likely to form a covalent bond?

Marat540 [252]

hydrogen and oxygen atoms

Explanation:

this is because they are non metals and there will be sharing of electrons between the two atoms forming the bond

4 0

2 years ago

the atomic number is the number of protons, but in a neutral atom it is also the number of _____. A. none of these B. electrons

aksik [14]

Answer:

Electrons

hope it helps

6 0

3 years ago