Which of the following is the best definition of a catalyst?
A) A catalyst is a material which speeds up the rate of a chemical reaction.
B) A catalyst is a material which speeds up the rate of a chemical reaction without participating in the reaction.
C) A catalyst is a material which speeds up the rate of a chemical reaction without being consumed during the reaction.
D) All of the above are equally good definitions.
C
You might also like to view...
The United Nations defines ________ as physical, social, and economic access at all times to safe and nutritious food sufficient to meet dietary needs and food preferences for an active and healthy life
A) caloric intake guidelines B) human rights C) freedom D) economic liberty E) food security
Which term refers to the portion of the earth's atmosphere, hydrosphere, and geosphere where life is found?
A. stratosphere B. biological base C. community D. ecosystem E. biosphere
Most of the land in South and East Asia is used for subsistence agriculture
a. True b. False Indicate whether the statement is true or false
An earthquake of Richter magnitude 5 releases 32 times more energy than an earthquake of magnitude 4.
Answer the following statement true (T) or false (F)