Its the FINAL COUNTDOWN

GET STOICHED!

100

What are 4 statements of equality that are applied into a stoichiometry problem?

Mole Ratio (from balanced equation)

Molar Mass (from the formula)

Avogadro's number (6.02 x 10^23 = 1 mol)

Molar Volume (22.4L = 1 mol)

200

How many moles are in 15 g of Li?

2.16107189 mol Li

300

How many grams are in 2.4 moles of sulfur?

7.69584 x 10^1 g S

400

How many atoms are in 18.4 L of Al?

4.945 x 10^23 atoms of Al

500

How many milliliters of the product was produced if 5.4 atoms of hydrogen reacted with oxygen?

2.009302326 x 10^-19 mL H2O

Foreseeing the Future

100

Magnesium reacts with oxygen.

Name the reaction type(s).

Synthesis and decomposition

200

What are the products of a complete combustion reaction? What are the products of a incomplete combustion reaction?

complete = CO2 + H2O

incomplete = CO + H2O

300

Before you can begin a limiting reactant problem, you must first convert the two givens into _______. After you have converted it, you will divide this number from the coefficient of the ___________ equation. 

moles. 

balanced.

400

Name the reaction type:

2Na + H2O ---> Na2O + H2

single replacement 

500

predict the products and write the chemical equation for the following reactants:

Aluminum reacts with tin (IV) phosphate 

Al + Sn3(PO4)4 ---> AlPO4 + Sn

Limited edition

100

What is a limiting reactant? What is an excess reactant?

LR - The reactant that is used up first, thus preventing the reaction from continuing.

ER - The reactant that is left over, even after the reaction has occurred. 

200

What controls the speed or outcome of a reaction? 

the limiting reactant

300

What is an indicator that you are dealing with a limiting reactant problem?

you will have TWO givens

400

Mg + 2 HCl ---> MgCl2 + H2

Which reactant is the limiting reactant when 14.6 atoms of HCl and 20 g of Mg react.

Use the balanced equation above to answer your question.

Mg

500

Aluminum reacts with copper (II) sulfate. How many grams of copper can be obtained when 56.0 grams of aluminum react with 316 grams of CuSO4?

1.258103272 x 10^2 g Cu

What's in a name?

100

Formula for Iron (III) Phosphate

FePO4

200

Name of SnS

Tin (II) Sulfide

300

Formula for cadmium chloride

CdCl2

400

Formula for bromine

Br2

500

Formula for manganese

Mn

Its a balancing act...

100

Balance the following equation:

 Fe +  Cl2 --->  FeCl3

 2 Fe + 3 Cl2 ---> 2 FeCl3 

200

What are all the mole ratios of the following chemical equation?

Cd3(PO4)2 +  (NH4)2S --->  CdS +  (NH4)3PO4

 

Cd₃(PO₄)₂ + 3 (NH₄)₂S --> 3 CdS + 2 (NH₄)₃PO₄ 

1 mol Cd3(PO4)2 =  3 mol (NH4)2S

1 mol Cd3(PO4)2  = 3 mol CdS 

1mol Cd3(PO4)2 = 2 mol (NH4)3PO4 

3 mol (NH4)2S = 3 mol CdS

3 mol (NH4)2S = 2 (NH4)3PO4 

3 mol CdS = 2 mol (NH4)3PO4 

300

Balance the following equation: 

PCl5 +  H2O --->  HCl + H3PO4

PCl5 + 4 H2O ---> 5 HCl + H3PO4

400

Balance the following equation:

 C4H10 +  O2 --->  CO2 +  H2O

2 C4H10 + 13 O2 = 8 CO2 + 10 H2O

500

Balance the following equation: 

KMnO4 +  HCl ---> KCl +  MnCl2 +  H2O +  Cl2

2 KMnO4 + 16 HCl ---> 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2