Multiple Choice
Which of the following is ALWAYS necessary for a chemical reaction to occur between two reactants,A and B?
A) Equal amounts of A and B must be present
B) A and B must be present in the same physical state
C) The reaction must be carried out at a temperature higher than room temperature
D) A and B must collide with the proper orientation and with a certain minimum amount of energy
Correct Answer:

Verified
Correct Answer:
Verified
Q86: One step in the metabolism of glucose
Q87: Once equilibrium is reached in a chemical
Q88: A reversible reaction in which K =
Q89: The ΔH for the reaction depicted by
Q90: Consider the reversible reaction at equilibrium: N<sub>2</sub>(g)+
Q92: When reactants can come together and form
Q93: Heat is absorbed in an _ reaction.
Q94: Bond breaking is endothermic.
Q95: Le Châtelier's principle is a general rule
Q96: In order to cause an endothermic equilibrium