Dawson - Int. Science Quiz 5.4

Front 1

Mr. Dawson
Integrated Science
Chapter 5 - Section 4

Back 1

Cut apart and study

Front 2

Name one thing that affects the rate of a reaction, and explain how it affects the rate of a reaction.

Back 2

1) catalyst - when added to a reaction, it will increase the reaction time

Front 3

Name another thing that affects the rate of a reaction, and explain how it affects the rate of a reaction.

Back 3

2) enzymes - proteins which become catalysts for chemical reactions

Front 4

REVIEW: Name the 2 things that affect the rate of reactions.

Back 4

1) catalyst and 2) enzymes

Front 5

T/F The following is an example of a chemical equilibrium:

2NO N O

Back 5

TRUE

Front 6

T/F The following is an example of a chemical equilibrium:

2H O 2H + O

Back 6

FALSE

Front 7

What is a catalyst?

Back 7

it is a substance that changes the rate of a chemical reaction.

Front 8

Does a catalyst change the rate of a chemical reaction with or without being consumed?

Back 8

WITHOUT

Front 9

Fill in the blanks: A ______________ is a substance that changes the rate of a chemical reaction _____________ being consumed.

Back 9

catalyst

without

Front 10

What two things work together like a lock and a key?

Back 10

substrate and enzyme

Front 11

Fill in the blanks: Together an ______________ and a ______________ are like a lock and a key, they fit together exactly.

Back 11

substrate

enzyme

Front 12

What is the symbol that means a reaction is reversible?

Back 12

_____________>
<___________

Front 13

What are catalysts that SLOW down reactions called?

Back 13

inhibitors

Front 14

What does La Chatelier's Principle say?

Back 14

"If a change is made to the chemical equilibrium in a system, the equilibrium shifts to oppose the change until a new equilibrium is reached."

Front 15

What are catalysts for living things called?

Back 15

enzymes