Chapter 4 Concepts

Question 1

SOLUBILITY RULES

Answer 1

1. All salts of sodium, potassium and ammonium ions are soluble.
2. Nitrates salts are soluble.
3. bromide, chloride and iodide salts are soluble, EXCEPT: silver, mercury and lead
4. sulfates salts are soluble, EXCEPT: calcium, barium and lead
5. hydroxides, sulfides, carbonates and phosphate salts are insoluble EXCEPT: Lithium, sodium,
   potassium and ammonium

Question 2

classify chemical reactions-combination

Answer 2

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Question 3

classify chemical reactions-decomposition

Answer 3

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Question 4

classify chemical reactions-combustion

Answer 4

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Question 5

classify chemical reactions-precipitation

Answer 5

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Question 6

classify chemical reactions-acid-base

Answer 6

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Question 7

classify chemical reactions-gas forming

Answer 7

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Question 8

classify chemical reactions-redox

Answer 8

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Question 9

definition of acid

Answer 9

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Question 10

definition of base

Answer 10

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Question 11

difference between strong and weak acid

Answer 11

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Question 12

difference between strong and weak base

Answer 12

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Question 13

difference between strong and weak electrolytes

Answer 13

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Question 14

how to find oxidation numbers

Answer 14

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Question 15

what is Molarity

Answer 15

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Question 16

definition of “double displacement reaction”

Answer 16

2 reactants produce 2 products (or 2 products and a gas)