Quiz 1

Question 1

Synthesis Reactions

Answer 1

A reaction where two or more reactants combine to produce a single compound
A + B → AB

Question 2

Synthesis Reactions involving H2

Answer 2

Will produce a lot of energy

When predicting products use the criss-cross nethos (assume H+) even though it is forming covalent compounds

Question 3

Synthesis of Metals with O2

Answer 3

General form: metal + oxygen → metal oxide

If a metal oxide is mixed with water it will produce a “hydroxide” base

Question 4

Synthesis of O2 with Non-Metals

Answer 4

When oxygen is reacted with other non-metals (most often N, S & C) they will produce oxides. Usually you’re told which oxide is formed
When non-metal oxides are dissolved in water they will form an acid (usually the “ic acid”)

Question 5

Decomposition Reactions

Answer 5

A reaction where a compound breaks down into elements or simpler compounds
AB → A + B

Question 6

Predicting Products of Simple Binary Ionic Compounds

Answer 6

These compounds tend to decompose into their elements

Question 7

Metal Nitrates

Answer 7

Metal Nitrates Decompose into Metal Nitrites and Oxygen Gas
Ex:
2NaNO3 → 2NaNO2 (s) + O2 (g)

Question 8

Metal Carbonates

Answer 8

Metal Carbonates Decompose into Metal Oxide and Carbon Dioxide
Ex:
CaCO3 (s) → CaO (s) + CO2 (g)

Question 9

Metal Hydroxide

Answer 9

Metal Hydroxide Decomposes into Metal Oxide and Water
Ex:
Ca(OH)2 → CaO + H2O