Which of the following represents a chemical change?

Chemistry

2 answers:

maw [93]3 years ago

6 0

That Answer would be...

C. Fireworks exploding

because this is a chemicals change the creates the fireworks.

Kitty [74]3 years ago

5 0

Answer: Option (c) is the correct answer.

Explanation:

A change that does not bring any difference in chemical composition of a substance are known as physical properties.

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

And, a change in which there occurs a difference in chemical composition of a substance then it is known as chemical change.

For example, precipitation, reactivity, toxicity etc are chemical change.

Fireworks exploding is a chemical change.

Thus, we can conclude that out of the given options fireworks exploding represents a chemical change.

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The volume in cubic centimeters is 250

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The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), the direct rule of three must be applied. To solve a direct rule of three, the following formula must be followed:

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$cubic centimeters=\frac{250 mL*1 cubic centimeters }{1 mL}$