Enzymes are organic catalysts
and catalysts generally increase rate of reaction by lowering activation energy
C is the answer
The melting of the ice cube indicates physical change has taken place
I really cant read it sorry i tried
Answer:
B. exothermic; leaving
Explanation:
The exothermic process releases heat, which causes the surrounding area to increase in temperature.
Your hand is releasing heat and makes the temperature of the ice cube increase, to where it melts.
