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Vocabulary
Mol-Mol Problems
G-G Problems
Ms. Lamar
100

What is a coefficient?

The numbers you can change while balancing equations, found in the front of reactants or products.

100

N₂ + 3H2 → 2NH3

How many moles of hydrogen are needed to completely react with 2 moles of nitrogen?

6 mol H2

100

2KClO3 → 2KCl + 3O2

How many grams of KCl are produced if 25g of KClO3 decompose?

15g KCl

100

What does Ms. Lamar's mom do for a job?

She's the librarian here at WHS!

200

What is stoichiometry?

Converting between a mol/g of one compound to a mol/g of another compound using mole ratios in a balanced equation.

200

2KClO3 → 2KCl + 3O₂

How many moles of oxygen are produced by the decomposition of 6 moles of KClO3?

9 mol O2

200

N₂ + 3H₂ → 2NH3

How many grams of hydrogen are necessary to react completely with 50.0g of nitrogen in the above reaction?

10.7g H2

200

How long has Ms. Lamar worked at WHS?

This is my 2nd year

300

What is a mole ratio?

The ratio of coefficients in a balanced equation, used to convert between mols of one compound to mols of a different compound.

300

Zn + 2HCl→ ZnCl₂ + H₂

How many moles of hydrogen are produced from the reaction of 3 moles of zinc with an excess of hydrochloric acid?

3 mol H2

300

N₂ + 3H₂ → 2NH3

How many grams of ammonia are produced with 50.0 grams of nitrogen?

60.7g NH3

300

Where did Ms. Lamar go to college?

University of New Hampshire (2 years) and then Stonehill College (2 years)

400

What is a limiting reactant?

The reactant that is used up first in a chemical reaction, determining how much product can be made.

400

C3H8 + 5O2→ 3CO₂ + 4H₂O

How many moles of oxygen are necessary to react completely with 4 moles of propane (C3H8)?

20 mol O2

400

2AgNO3 + BaCl2 → 2AgCl + Ba(NO3)2

How many grams of silver chloride are produced from 5.0g of silver nitrate reacting with an excess of barium chloride?

4.2 g AgCl

400

Where did Ms. Lamar graduate from high school?

Attleboro High School

500

What is an excess reactant?

The left over reactant when a chemical reaction stops due to the limiting reactant running out
500

K3PO4 + Al(NO)3→ 3KNO3 + AlPO4

How many moles of KNO3 are produced when 2 moles of K3PO4 react with 2 moles of Al(NO)3?

6 mol KNO3

500

2AgNO3 + BaCl2 → 2AgCl + Ba(NO3)2

How much barium chloride is necessary to react with 5.0g of silver nitrate?


2.5g BaCl2

500

What did Ms. Lamar study in college?

Environmental science