Chemical Change Flashcards
0
Q
Evidence of chemical change
A
Gas is formed (new substance created)
Change in temperature (energy absorbed or released)
Change in color
A solid is formed
Production of light (energy has been absorbed or released)
1
Q
Chemical change
A
A change that occurs when substances become new or different substances. Bonds break, atoms rearrange, new molecules appear.
2
Q
Examples
A
Rusting of iron Metabolism of food in the body Cooking an egg Mixing acid and hydrochloric acid Baking a cake Explosion of fireworks
