IDNLearn.com: Your one-stop platform for getting reliable answers to any question. Our platform offers detailed and accurate responses from experts, helping you navigate any topic with confidence.

Which TWO observations are evidence that a chemical change is happening?

A. A yellow liquid forms as a yellow solid is slowly heated.

B. Bubbles of gas are released when a solid is combined with a liquid.

C. Solid crystals form as the temperature of a liquid is lowered.

D. Light and heat are given off after a spark ignites a substance.​