2014 Chapter 5 - Chemical reactions

Question 1

Cations or anions? How many electrons are lost or gained? What is the written name for it?
H

Answer 1

Cation; loses 1; H+; Hydrogen ion

Question 2

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Li

Answer 2

Cation; loses 1; Li+; Lithium ion

Question 3

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Na

Answer 3

Cation; loses 1; Na+; Sodium ion

Question 4

Cations or anions? How many electrons are lost or gained? What is the written name for it?
K

Answer 4

Cation; loses 1: K+; Potassium ion

Question 5

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Cu [1]

Answer 5

Cation; loses 1; Cu+; Copper(I) ion

Question 6

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Ca

Answer 6

Cation; loses 2: Ca[2+]; Calcium ion

Question 7

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Mg

Answer 7

Cation; loses 2: Mg[2]; Magnesium ion

Question 8

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Ba

Answer 8

Cation; loses 2; Ba[2+]; Barium ion

Question 9

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Cu [2]

Answer 9

Cation; loses 2; Cu[2+]; Copper(II) ion

Question 10

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Fe [2]

Answer 10

Cation; loses 2; Fe[2+]; Iron(II) ion

Question 11

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Fe [3]

Answer 11

Cation; loses 3; Fe[3+]; Iron(III) ion

Question 12

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Al

Answer 12

Cation; loses 3; Al[3+]; Aluminium ion

Question 13

Cations or anions? How many electrons are lost or gained? What is the written name for it?
F

Answer 13

Anion; gains 1; F-; Fluoride

Question 14

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Cl

Answer 14

Anion; gains 1; Cl-; Chloride

Question 15

Cations or anions? How many electrons are lost or gained? What is the written name for it?
Br

Answer 15

Anion; gains 1; Br-; Bromide

Question 16

Cations or anions? How many electrons are lost or gained? What is the written name for it?
I

Answer 16

Anion; gains 1; I-; Iodide

Question 17

Cations or anions? How many electrons are lost or gained? What is the written name for it?
OH

Answer 17

Anion; gains 1; OH-; Hydroxide

Question 18

Cations or anions? How many electrons are lost or gained? What is the written name for it?
NO3

Answer 18

Anion; gains 1; NO3[-]; Nitrate

Question 19

Cations or anions? How many electrons are lost or gained? What is the written name for it?
HCO3

Answer 19

Anion; gains 1; HCO3[-]; Hydrogen carbonate

Question 20

Cations or anions? How many electrons are lost or gained? What is the written name for it?
O

Answer 20

Anion; gains 2; O[2-]; Oxide

Question 21

Cations or anions? How many electrons are lost or gained? What is the written name for it?
S

Answer 21

Anion; gains 2; S[2-]; Sulfide

Question 22

Cations or anions? How many electrons are lost or gained? What is the written name for it?
SO4

Answer 22

Anion; gains 2; SO4[2-]; Sulfate

Question 23

Cations or anions? How many electrons are lost or gained? What is the written name for it?
CO3

Answer 23

Anion; gains 2; CO3[2-]; Carbonate

Question 24

Cations or anions? How many electrons are lost or gained? What is the written name for it?
N

Answer 24

Anion; gains 3; N[3-]; Nitride

Question 25

Cations or anions? How many electrons are lost or gained? What is the written name for it? PO4

Answer 25

Anion; gains 3; PO4[3-]; Phosphate

Question 26

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Acetate, CH3COO[-]

Answer 26

All | Soluble

Question 27

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? All

Answer 27

Li+, Na+, K+, Rb+, NH4[+] | Soluble

Question 28

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Chloride, Cl- Bromide, Br- Iodide, I-

Answer 28

Ag+, Pb[2+], Hg[2+], Cu+ Low solubility All others Soluble

Question 29

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Hydroxide, OH-

Answer 29

Li+, Na+, K+, Rb+, NH4[+], Sr[2+], Ba[2+] Soluble All others Low solubility

Question 30

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Nitrate, NO3[-]

Answer 30

All | Soluble

Question 31

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Phosphate, PO4[3-] Carbonate, CO3[2-]

Answer 31

Li+, Na+, K+, Rb+, NH4[+] Soluble All others Low solubility

Question 32

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Sulfate, SO4[2-]

Answer 32

Ca[2+], Sr[2+], Ba[2+], Pb[2+] Low solubility All others Soluble

Question 33

Here are negative ions (anions). Which is soluble with it, which is insoluble with it? Sulfide, S[2-]

Answer 33

Li+, Na+, K+, Rb+, NH4[+], Be[2+], Mg[2+], Ca[2+], Sr[2+], Ba[2+] Soluble All others Low solubility

Question 34

State the general name given to the chemicals that: a. ) take part in a chemical reaction b. ) produced by a chemical reaction

Answer 34

a. ) reactants | b. ) products

Question 35

State what -> means in chemical reaction

Answer 35

rearrange to form

Question 36

State the law of conservation of mass

Answer 36

no atoms can be created or destroyed during a chemical reaction

Question 37

State the meaning of the symbols (s), (l), (g) and (aq)

Answer 37

(s) = solid (g) = gas (l) = liquid (aq) = aqueous solution

Question 38

Cations or anions? How many electrons are lost or gained? What is the written name for it? NH4

Answer 38

Cation; loses 1; NH4+; Ammonium ion