Chemistry 8

Question 1

Name for a substance that dissolves in water to create a solution that conducts electricity

Answer 1

Electrolyte

Question 2

What is the difference in structure between Ionic Compounds and Molecular Compounds

Answer 2

Ionic Compounds are typically 3D and crystalline. Molecular compounds are just a cluster of atoms.

Question 3

Two molecules, which, when they react with a hydroxyl radical in an oxidation reaction form Tropospheric Ozone.

Answer 3

Carbon Monoxide and Methane

Question 4

Bacteria that don’t need oxygen to live

Answer 4

Anaerobic Bacteria

Question 5

Two pathways to Methanogenesis

Answer 5

Acetoclastic and Hydrogenotrophic

Question 6

Term for sudden releases of methane bubbles into the air in wetland biomes

Answer 6

Ebullition

Question 7

Process involving the reaction of hydrogen with carbon dioxide at a high temperature with a nickel catalyst to form methane and water

Answer 7

Sabatier Process

Question 8

Term for a hydrocarbon molecule that has carbon carbon double or triple bonds. More hydrogens can be added to it so it consists of only single bonds.

Answer 8

Unsaturated Hydrocarbons

Question 9

Term for an acyclic hydrocarbon molecule that is fully saturated (made up of only single bonds)

Answer 9

Alkane

Question 10

Term for an unsaturated hydrocarbon containing a carbon carbon double bond

Answer 10

Alkene

Question 11

Term for an unsaturated hydrocarbon containing a carbon carbon triple bond

Answer 11

Alkyne

Question 12

Scientist who developed a scale for Electronegativity

Answer 12

Linus Pauling

Question 13

Element that is the most electronegative and it’s electronegativity value on the pauling scale

Answer 13

Fluorine at 4.0

Question 14

How much electronegativity difference makes a bond ionic

Answer 14

Over 1.7

Question 15

How much electronegativity difference makes a bond fully covalent

Answer 15

Less than 0.4

Question 16

VSEPR (Valence Shell Electron Pair Repulsion )Theory

Answer 16

Electron pairs (clouds) around the central atom will stay as far apart as possible. This leads to the common molecular shapes of linear, trigonal, and tetrahedral.