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1. A foreign substance that increase the speed of a chemical reaction is called
A. promotor
B. catalyst
C. moderator
D. inhibitor
6. Identify the INCORRECT statement.
A. The rate of a typical reaction doubles with a 10° C rise in temperature.
B. The reaction mechanism is a step-by-step pathway by which reaction occurs.
C. The overall rate of reaction is determined by the rate of the fastest elementary step.
D. The reaction mechanism is typically a series of elementary reaction steps.
9. Instantaneous reaction expresses
A. Rate at particular moment of time
B. Pressure at particular time
C. Speed at particular time
D. Concentration at particular time
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