Chapter 10 - Types of chemical reaction Flashcards

1
Q

What are synthesis reactions?

A

Reactions in which two or more substances, often elements, combine to form a new substance.

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2
Q

Do metals react with other metals?

A

No.

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2
Q

Do metals react chemically with other metals?

A

No.

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3
Q

Do Non-metals in the top right hand corner of the periodic table will react with most metals to form ionic compounds?

A

Yes.

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4
Q

What is a decomposition reaction?

A

Reactions in which a compound is decomposed into two or more other substances, which may be elements or other compounds.

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5
Q

What is electrolysis?

A

The process in which an electric current is passed through a liquid or solution to bring about a chemical reaction.

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6
Q

What is a combustion reaction?

A

A reaction in which elements or compounds burn in oxygen

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6
Q

How can compounds be decomposed?

A

By -
- Heating them
- Passing an electric current through them in the molten state or in solution
- Exposing them to light

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7
Q

What does a combustion reaction create?

A

Carbon dioxide and water (CO2 & H2O)

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8
Q

Are combustion reactions exothermic or endothermic?

A

Always exothermic.

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9
Q

What is a precipitation reaction?

A

When two aqueous ionic solutions are mixed.

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10
Q

What is the first solubility rule?

A

All nitrates and acetates are soluable. NO3-, CH3COO-

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11
Q

What is the second solubility rule?

A

Group 1 and ammonium salts are soluble (NH4+).

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11
Q

What is the fifth solubility rule?

A

All hydroxides are insoluble except for Rule 2, barium and calcium (slightly).

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12
Q

What is the third solubility rule?

A

All chlorides, bromides and iodides are soluble, except those of silver and lead.

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13
Q

What is the fourth solubility rule?

A

All sulfates are soluble except barium, lead, and calcium.

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14
Q

What is the sixth solubility rule?

A

All carbonates are insoluble except for Rule 2.

15
Q

What is a net ionic equation?

A

An equation which shows the actual ions that are undergoing reaction without specifying the compounds they come from.

16
Q

What is a complete ionic equation?

A

An equation that shows all the ions present in the reaction mixture.

16
Q

What is a complete formula equation?

A

An equation that shows the actual compounds that were used for the reaction.

17
Q

What is a spectator ion?

A

An ion which is present in the chemical reaction but not actually involved in the chemical change that occurs.

18
Q

What is the PH of an acid?

A

> 7.

19
Q

What is the PH of a base?

A

<7.

20
Q

What is the PH of a neutral solution?

A

7.

21
Q

What is an acid?

A

An acid is a substance that in solution produces hydrogen ions.

22
Q

What is a base?

A

A substance that contains either the hydroxide ion or the oxide ion.

23
Q

What are the properties in alkalis?

A
  • Soapy feel
  • Bitter taste
  • Conduct electricity when in solution
  • Change red litmus to blue (the opposite of acids)
23
Q

What is an alkalis?

A

A base that is soluble in water.

24
Q

What are anions formed from oxyacids called?

A

Oxyanions.

24
Q

What is the reaction of an acid and a base called?

A

A neutralisation reaction.

25
Q

What is an oxyacid?

A

An acid with oxygen attached to an element such as sulfur, nitrogen, phosphorus or carbon.

25
Q

What is the general equation for a neutralisation reaction?

A

Acid + Base –> salt + water

26
Q

What does an acid + active metal reaction create?

A

Salt + Hydrogen gas

27
Q

What is a salt?

A

An ionic compound is formed when a base reacts with an acid.

27
Q

What does an acid/carbonate reaction create?

A

Salt + carbon dioxide + water

28
Q
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Q
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29
Q
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30
Q
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