All categories

3 years ago

Which statement best describes the difference between a physical change and a chemical change?

Chemistry

2 answers:

masya89 [10]3 years ago

7 0

Answer: Option (b) is the correct answer.

Explanation:

A change that does not lead to any difference in chemical composition of a substance is known as a physical change.

For example, shape, size, mass, volume, density, boiling point, etc of a substance are all physical properties.

On the other hand, changes that lead to bring change in chemical composition of a substance is known as a chemical change.

For example, exploding dynamite, rotting cheese, combustion, oxidation etc are all chemical changes.

Thus, we can conclude that the statement a physical change is a change from one state of matter to another; a chemical change results in a new substance formed, is correct.

Helen [10]3 years ago

5 0

Answer:

The answer is letter C

Explanation:

You might be interested in

An atom has 5 protons, 4 electrons, and 5 neutrons. Which

Likurg_2 [28]

Answer:

i think the answer is C

Explanation:

not sure plsss dont bash im a beginner

3 0

3 years ago

Read 2 more answers

Mass = 35g Volume = 7cm³ What is the Density?

gizmo_the_mogwai [7]

Answer:

The answer is

Explanation:

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

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

From the question

mass = 35 g

volume = 7 cm³

The density is

$density = \frac{35}{7} \\$

We have the final answer as

Hope this helps you

7 0

3 years ago

Explain whether nitrogen atoms will form bonds with other atoms.

Stells [14]

Nitrogen can make bonds with other atoms.. Typically though it only makes 3 bonds, so it fills its octet.

4 0

3 years ago

What’s the formula for magnesium

polet [3.4K]

Answer:

You better read more, kiddo.

If Calcium is Ca, why not Mg for magnesium; they are right next to each other; read until you know to Iron, Fe. (It is Fe because it is very long known, and kept its Latin name).

Like Sodium and Mercury and Lead &

Potassium. Look them up, & it will help you remember. Natrium, Hydragyrum, Plumbium et Kalium.

Good Luck!

Explanation:

7 0

3 years ago

In an experiment, 135.2 grams of a mystery metal is heated to 100.0*C. The metal is then dumped into a calorimeter with 59.0 gra

Rufina [12.5K]

The answer wound be 23 units I think

4 0

3 years ago