Chemical Interaction

Question 1

Covalent (type of element, electron movement, conductivity and melting point)

Answer 1

1. Nonmetal to Nonmetal
2. Shared electrons
3. Poor conductors
4. Low melting points

Question 2

Ionic (type of element, electron movement, conductivity and melting point)

Answer 2

1. Metal and nonmetal
2. Transfer - gain or lose
3. Good conductors when dissolved in water
4. High melting points

Question 3

MgCl2 (type of bond)

Answer 3

Ionic (metal and nonmetal)

Question 4

Au (type of bond)

Answer 4

Metallic (metal and metal)

Question 5

CH4 (type of bond)

Answer 5

Covalent (nonmetal and nonmetal)

Question 6

B2O3 (type of bond)

Answer 6

Ionic (metal and nonmetal)

Question 7

K1+ and Br1- (formula)

Answer 7

KBr

Question 8

Ba2+ and S2- (formula)

Answer 8

BaS

Question 9

Mg and F (formula)

Answer 9

MgF2

Question 10

B and O (formula)

Answer 10

B2O3

Question 11

Be and Br (formula)

Answer 11

BeBr2

Question 12

Mg and CO3 2- (formula)

Answer 12

MgCO3

Question 13

Ca and PO4 3- (formula)

Answer 13

Ca3(PO4)2

Question 14

Imagine water molecule

Answer 14

H2 O

Question 15

Two of waters unique properties:

Answer 15

Capillary action

Surface tension

Question 16

Why do surface tension and capillary action occur?

Answer 16

Because water is polar (+ and - attracted)

Question 17

Why is water considered a universal solvent?

Answer 17

Dissolve many substances

Question 18

Metallic Bonds (type of element, electron movement, conductivity and melting point)

Answer 18

1. Metal to Metal
2. Sea of electrons
3. Good conductors
4. High melting point