Answer: A) Physical Change because even though color change occurred, each solid maintained its original properties which you could see as soon as the magnet was applied .
Explanation: I just took the quiz
Answer:
The correct answer is C Speed or velocity of the reaction
Explanation:
Enzymes are homogenous,biological catalyst that is used to speed up the reaction.
Enzyme do this by decreasing the energy barrier also called activation energy of the reactants but do not hamper the reaction equilibrium.
The enzyme itself remain unchanged throughout the overall reaction.
<span>Photochemical smog, created by the chemical reaction between sunlight, nitrogen oxides and volatile organic compounds is (e) generally worse during the winter months in part because of the increase in energy used to heat homes and other buildings.</span>
C6H12O6 + O2 -> CO2 + H2O + ATP.
This would be the summarized equation for cellular respiration.