Ionic Bonding

Question 1

high melting point

Answer 1

-a large amount of energy needed to overcome electrostatic attractions
-bonds between negative and positive ions are strong

Question 2

hard and brittle

Answer 2

-strong electrostatic forces of attractions between ions
-repulsion between similarly charged ions causes the crystal to shatter

Question 3

doesnt conduct electricity in solid state

Answer 3

ions are held in the crystal lattice and are not free to move

Question 4

does conduct electricity in molten state

Answer 4

when compound is melted ions become free to move causing them to conduct electricity

Question 5

polyatomic ion: ammonium

Answer 5

NH₄+

Question 6

polyatomic ion: cyanide

Answer 6

CN-

Question 7

polyatomic ion: dihydrogen phosphate

Answer 7

H₂PO₄-

Question 8

polyatomic ion: ethanoate

Answer 8

CH₃COO-

Question 9

polyatomic ion: hydrogen carbonate

Answer 9

HCO₃-

Question 10

polyatomic ion: hydrogen sulfide

Answer 10

HS-

Question 11

polyatomic ion: hydrogen sulfite

Answer 11

HSO₃-

Question 12

polyatomic ion: hydrogen sulfate

Answer 12

HSO₄-

Question 13

polyatomic ion: hydroxide

Answer 13

OH-

Question 14

polyatomic ion: nitrite

Answer 14

NO₂-

Question 15

polyatomic ion: nitrate

Answer 15

NO₃-

Question 16

polyatomic ion: permanganate

Answer 16

MnO₄-

Question 17

polyatomic ion: carbonate

Answer 17

CO₃²-

Question 18

polyatomic ion: chromate

Answer 18

CrO₄²-

Question 19

polyatomic ion: dichromate

Answer 19

Cr₂O₇²-

Question 20

polyatomic ion: hydrogen phosphate

Answer 20

HPO₄²-

Question 21

polyatomic ion: Oxalate

Answer 21

C₂O₄²-

Question 22

polyatomic ion: sulfite

Answer 22

SO₃²-

Question 23

polyatomic ion: sulfate

Answer 23

SO₄²-

Question 24

polyatomic ion: phosphate

Answer 24

PO₄³-