Practice 11/27

Properties of Matter

100

What is the term used to refer to the amount of matter in a subject?

Mass

200

When sugar burns, is that a chemical or physical change?

Chemical

300

What happens to the mass and volume of water when it evaporates?

stays the same, increases

400

what kind of change is lighting a match?

chemical change

500

Dissolving salt in water to make a salt solution. Homogenous or Heterogenous mixture?

Homogenous

Balancing Equations

100

_H2 + _Cl2 >>> _HCl

1, 1, 2

200

___ HCl + ___ NaOH >> ___ NaCl + ___ H2O

1,1,1,1

300

___ Na + ___ O2 >>> ___ Na2O

4,1,2

400

___ K + ___ B2O3 >> ___ K2O + ___ B

6,1,3,2

500

___ NaOH + ___ H2CO3 >> ___ Na2CO3 + ___ H2O

2,1,1,2

Electron Configuration

100

Write Electron Configuration for Iodine

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5

200

Electron Configuration of Chlorine

[Ne] 3s2 3p5

300

Magnesium

[Ne] 3s2

400

[Kr] 5s2 4d10

identify the element

cadmium

500

[Xe] 6s2 4f14 5d10 6p2

Identify the element

Lead

Solubility

100

Will NaCl dissolve in H2O and why

Yes. Polar and Polar

200

What happens to solubility when temperature rises?

solubility increases

300

What happens to solubility when pressure increases?

solubility increases

400

Would it be possible to dissolve 50 g of sugar in a solvent that has a solubility of 45g? Why?

No because it is saturated

500

Based on solubility guidelines, is AgCl soluble or insoluble?

insoluble