Question

Which of the following represents a chemical change?

Bending a wire
Freezing of water
Fireworks exploding
Melting of a wax candle

Answer 1

There are several differences between a physical and chemical change in matter or substances. A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed. In this question, the right answer would be Fireworks Exploding, because fireworks are completely changing. bending a wire doesnt change the wire, freezing water doesnt change the properties of water, and melting doesnt change the properties either.

Answer 2

Answer: This would be fireworks exploding or the third answer/C.

Explanation:

I know this because first of all I took a test for flvs and got it right plus getting a wire is physical because you can put it back in its original place or it doesn’t change his composition and then freezing water it also does not change its composition plus it also can be changed back to its original one and last melting of a candle wax is a physical change. Hope his helped!!