PS Limiting Reactant

Multiple Choice

What is the coefficient of Carbon in the below chemical equation:

C + 2Cl₂ → CCl₄

• 1

• 2

• 3

• 4

Multiple Choice

What is the subscript of Phosphorus in the below chemical equation?

P₄ + 6H₂ → 4PH₃

• 1

• 2

• 3

• 4

Multiple Choice

What are the reactants in the below equation?

2F₂ + H₂O → OF₂ + 2HF

• 2F₂ + H₂O

• OF₂ + 2HF

• 2F_{2 +} OF₂

• H₂O + 2HF

Multiple Choice

What are the products in the below chemical reaction?

C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O

• C₂H₅OH + 3O₂

• 2CO₂ + 3H₂O

• C₂H₅OH + 2CO₂

• 3O₂ + 3H₂O

Multiple Choice

What symbol separates the reactants from the product

• +

• →

• -

• ≥

Multiple Choice

What symbol separates a reactant from another reactant

• +

• →

• -

• ≥

Math Response

If Nitrogen (N) have an atomic weight of 14.01g, what is the molar mass of 2N₂?

Type answer here

Correct Answer: 14.01\times2\times2=56.04

Deg^°

Rad

Math Response

If Oxygen (O) have an atomic weight of 16g, what is the molar mass of ozone, O₃?

Type answer here

Correct Answer: 16\times3=48

Deg^°

Rad

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Multiple Choice

The following are TRUE about limiting reactant except

• It determines the amount of product that is formed.

• It is the reactant present in the lower amount.

• It is nearly always entirely consumed.

• It usually is in excess.

Math Response

If the balanced equation is 2H₂ + O₂ → 2H₂O, what is the mass (g) of water when 2g of H₂ will react with O₂?

Given atomic weight of H = 1.01g and O = 16g.

Type answer here

Correct Answer: 2\times\left(1\div2.02\right)\times\left(2\div2\right)\times\left(18.02\div1\right)=17.84

Deg^°

Rad