Chemistry 7 Unit 6 Review

Zero Charge Rule

100

Sodium chloride

NaCl

200

Calcium oxide

CaO

300

Aluminum oxide

Al₂O₃

400

silver phosphate

Ag₃(PO₄)

500

Ammonium chlorate

(NH₄)(ClO₃)

Predict the Products

100

Mg + Cl₂ ->

MgCl₂

200

2HCl + 2Na ->

2NaCl + H₂

300

2K(NO₃) + CaO ->

K₂O + Ca(NO₃)₂

400

SO₂ ->

S + O₂

500

2C₅H₁₀ + 15O₂ ->

10CO₂ + 10H₂O

Balance!

100

K + Cl₂ -> KCl

2; 1; 2

200

HCl + Ca(OH)₂ -> H₂O + CaCl₂

2; 1; 2; 1

300

Zn + CuI₂ -> ZnI₂ + Cu

1; 1; 1; 1

400

Ag(NO₃) + K₂(CrO₄) -> Ag₂(CrO₄) + K(NO₃)

1; 1; 1; 1

500

Na(CN) + H₂(SO₄) -> Na₂(SO₄) + H(CN)

2; 1; 1; 2

Precipitation

100

Ca(OH)₂; soluble or insoluble?

Soluble

200

Identify the precipitate:

NiBr₂(aq)     +     Na₂(CO₃)(aq)  ->

Ni(CO₃)

300

Write the molecular equation for the precipitation rxn between aluminum chloride and lithium phosphate. 

AlCl_3(aq) + Li₃(PO₄)_(aq) -> Al(PO₄)_(s) + 3LiCl_(aq)

400

Write the net ionic equation for the formation of the precipitate, lead (II) hydroxide.

Pb²⁺ + 2(OH^-) -> Pb(OH)_2(s)

500

Write the ionic equation for the following rxn:

(NH₄)₂(SO₄)_(aq) + Ba(NO₃)_2(aq) -> Ba(SO₄)_(s) + 2(NH₄)(NO₃)_(aq)

2NH₄⁺ + (SO₄^2-) + Ba²⁺ + 2(NO₃^-) -> Ba(SO₄)_(s) + 2NH₄⁺ + 2(NO₃^-)

Wild Card (includes other units!)

100

The ions within a solution that are not a part of the precipitate.

Spectator ions

200

A chemical reaction where one substance is combined with another substance to form one new substance.

Synthesis reaction

300

A chemical reaction where an acid and a base form a salt and water

A neutralization reaction

400

The chemical formula for hydrobromic acid

HBr

500

A chemical reaction where a hydrocarbon is reacted with excess oxygen.

Combustion