Answer:
D — All of them
Explanation:
The activation energy in a reaction is the minimum amount of energy required for a chemical reaction to take place. Since all the options are processes in a chemical reaction, D should be the answer.
Answer:
Mechanical Energy to Thermal Energy
When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required to light the match. This is a transformation from mechanical energy to thermal (heat) energy.
Explanation:
Answer true
Explanation:becoz it's true
Answer:
gypsum
Explanation:
gypsum is used to make plaster of Paris
C. Chemical change because it doesn’t change it chemical makeup but it will change temps it’s physical appearance and phase change or change of state
