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Flashcards in Module 15 Deck (22)
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1

State Le Chatelier's principle

When a stress is applied to an equilibrium, the reaction will shift so that stress is relieved and equilibrium restored.

2

chemical equilibrium

when both the forward and reverse reactions have equal rates
the amounts of each substance will not change, despite the fact that both reactions still proceed

3

When K is large, the equilibrium is weighted

toward the products side of the equation

4

When K is small, the equilibrium is weighted

toward the reactants side of the equation

5

When K is near unity, the equilibrium is

balanced between the reactants and products

6

When a solid appears in a chemical equilibrium,

it is not included in equation (15.2)

7

When a liquid (not aqueous) appears in a chemical equation,

we do not include it in equation (15.2)

8

Le Chatelier's principle ignores

solids and liquids as a source of stress to the equilibrium

9

When an equilibrium is subjected to an increase in pressure, it will

shift away from the side with the largest number of gas molecules

10

When an equilibrium is subjected to a decrease in pressure, it will

shift toward the side with the largest number of gas molecules

11

if there are no gases in the equation or if the number is equal on both sides

nothing will happen

12

when temp is raised,

an equilibrium will shift away from the side of the equation that contains energy

13

when temp is lowered

the reaction will shift toward the side that contains energy

14

acid ionization reaction

the reaction in which an H+ separates from an aid molecule so that it can be donated in another reaction

15

If the ionization constant of an acid is large,

the acid is considered a stong acid

16

if the ionization constant is not large

we call it a weak acid

17

pH stands for

'potential hydrogen'

18

pH 0-1.9

strongly acidic

19

pH 2-6.9

weakly acidic

20

pH 7.1-12

weakly basic

21

pH 12.1- 14

strongly basic

22

pH 7

neutral solution