Which of the following chemical reactions is an oxidation-reduction reaction?
Answer
WO3 + 3H2 W + 3H2O
KNO3 + LiCl LiNO3 + KCl
CaSO4 + 2NaCl Na2SO4 + CaCl2
Mg (NO3) 2 + 2HBr MgBr2 + 2HNO3
According to the collision theory and model created to explain the collision theory, what is the best explanation for why a higher concentration makes a reaction go faster?
There are more collisions per minute.
It increases the distance between the particles.
It increases the average kinetic energy of the particles.
It increases the average kinetic energy and there are more collision per minute.
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