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Flashcards in Checkpoint 6 Deck (17)
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1

How does a catalyst affect the rate of reactions?

Lowers activation energy of a reaction

2

Minimum amount of energy reactants must collide with in order for a reaction to make place

Activation energy

3

How does increasing temperature affect the rate of reaction?

Speeds up the particles in the reaction

4

How does increasing the concentration affect the rate of reaction?

Number of collisions increase

5

When the concentration of a substance is increased, the equilibrium will shift to _____

use up

6

When the concentration of a substance is decreased, the equilibrium will shift to _____

make more of it

7

When the temperature is increased, the equilibrium will shift to_____

use up energy

8

When the temperature is decreased, the equilibrium will shift to ______

make more energy

9

When the volume is increased, the equilibrium will shift _____

to the side with more moles of gas (left)

10

When the volume is decreased, the equilibrium will shift to _____

side with less moles of gas

11

If the value of the equilibrium constant is greater than 100, it is ____ favored

Product

12

If the value of the equilibrium constant is less than .01, it is ____ favored

Reactant

13

if Q is greater than the equilibrium constant, it will shift ___

left

14

If Q is less than the equilibrium constant, it will shift _____

right

15

What do you need to prepare an effective buffer?

Weak acid and conjugate base, large amount of both weak acid and weak base

16

How does a buffer resist changes in pH when strong acid and base are added?

Absorbs hydrogen or hydronium ions

17

Amount of H+ or OH- that a buffer can absorb before we use up the weak acid and the weak base

Buffer capacity