Chemistry

Question 1

Cation charge

Answer 1

postitive

Question 2

Anion charge

Answer 2

negative

Question 3

Cation electron loss/gain

Answer 3

loss

Question 4

Anion electron loss/gain

Answer 4

gain

Question 5

Name ion: Ca2+

Answer 5

Calcium Ion (metal cation)

Question 6

Name ion: O2-

Answer 6

Oxide (non-metal)

Question 7

Element types - Ionic Compounds

Answer 7

Metal & Non-Metals (possible polyatomic)

Question 8

Element types - Molecular Compounds

Answer 8

Non metals

Question 9

Electron exchange type - Ionic Compounds

Answer 9

donate/take

Question 10

Electron exchange type - Molecular Compound

Answer 10

sharing

Question 11

Example of chemical change: gas released

Answer 11

Baking

Question 12

Example of chemical change: heat released

Answer 12

Engine

Question 13

Example of chemical change: new colour

Answer 13

Rust

Question 14

Glowing splint test: gas, positive result

Answer 14

Oxygen; glowing splint re-lit

Question 15

Pop Test: gas, positive result

Answer 15

Hydrogen; burning splint, pop sound heard

Question 16

Extinguishing Flame Test: gas, positive result

Answer 16

Carbon Dioxide; splint extinguished

Question 17

Limewater Test: gas, positive result

Answer 17

Carbon Dioxide; limewater becomes cloudy

Question 18

Naming Binary Acid

Answer 18

Hydro + non-metal (replace ending with “ic”) + Acid

Question 19

Type of Acid: Hydroiodic Acid

Answer 19

Binary: HI

Question 20

Naming Oxyacid

Answer 20

Oxyacid Name + Acid (Citric Acid)

Question 21

Type of Acid: Iodic Acid

Answer 21

Oxyacid

Question 22

Litmus paper: Red

Answer 22

Acid (reD, aciD)

Question 23

Litmus paper: Blue

Answer 23

Base (Base, Blue)

Question 24

Synthesis Reaction (S)

Answer 24

Multi-reactants –> one product (A+B –> AB)

Question 25

Decomposition Reaction (D)

Answer 25

1 Reactant to multiple products (AB --> A+B)

Question 26

Single Displacement Reaction (SD)

Answer 26

One element transfers molecules (AB + CD --> BCD + A), metals, non-metals only replace same type as self

Question 27

Double Displacement Reaction (DD)

Answer 27

Two elements transfer to new molecules (element type only replaces self, metal, non-metal, polyatomic), (AB + CD --> AD + CB)

Question 28

Regular Combustion Reaction (C)

Answer 28

Any element with oxygen (similar to S); products example: sodium oxide, nitrogen trioxide

Question 29

Hydrocarbon Complete Combustion (CC)

Answer 29

Carbon, Hydrogen, Oxygen --> H2O, CO2

Question 30

Hydrocarbon Incomplete Combustion (IC)

Answer 30

Carbon, Hydrogen, Oxygen --> Water + carbon, oxygen mix

Question 31

H2O

Answer 31

Water

Question 32

H202

Answer 32

Hydrogen Peroxide

Question 33

NH3

Answer 33

Ammonia

Question 34

CH4

Answer 34

Methane

Question 35

Direction which cations become more reactive?

Answer 35

Metals, down, more rings, easier to drop

Question 36

Direction which anions become more reactive?

Answer 36

Non-metals, up, more rings, easier to attract