Answer:
3.46
⋅
10
−
19
J
Explanation:
The energy of a photon is proportional to its frequency,
The answer is D because the air is made of nitrogen and oxygen. The reaction is endothermic.
Hope this helps you! :)
The answer is volume, in gasses, volume depends on the matter, but in solids, volume can be measured.
Answer:
B) A catalyst can accelerate a reaction.
Explanation:
A is the answer I know bc I take biology