U4-Module 2: Understanding Proportions

Question 1

What are the reactants in a combustion reaction?

Answer 1

A fuel and a gas

Question 2

How many grams are in 1 kg?

Answer 2

1000 g

Question 3

Theoretical Yield of Reaction

Answer 3

The maximum amount of product produced in a chemical reaction.

Question 4

How many grams are in 1 microgram?

Answer 4

1 x 10^-6

Question 5

What do chemical equations represent?

Answer 5

Proportions of reactants and products, not the amounts

Question 6

What happens in all experimental situations?

Answer 6

There are losses in the amounts of product

Question 7

Experimental Yield

Answer 7

The actual amount of product produced in a chemical reaction

Question 8

Theoretical Yield

Answer 8

The predicted amount of product produced in a chemical reaction

Question 9

What does it mean if the yield of a reaction is less than the full desired amount?

Answer 9

Less product will be produced or more reactant will be needed to produce the desired amount of product

Question 10

What will the experimental yield be different from?

Answer 10

The theoretical yield

Question 11

Percent Yield formula

Answer 11

(actual yield)/(theoretical yield) x 100

Question 12

What is the theoretical yield calculated from?

Answer 12

Limiting reactant