Chapter 14a Balancing Equations and Mole Ratios

The two sides of a chemical equation are called?

• Reactants (left) and Products (right)

• Ingredients (left) and Products (right)

• Cations and Anions

• Reactants (left) and Results (right)

 What is the missing coefficient in this equation?

Mg  +  ___ HCl  →   MgCl₂  +   H₂

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What are the missing coefficient in this equation?

__ Al + __ FeO → Al₂O₂ + __ Fe

• 1, 1, 2

• 2,1,2

• 2, 2, 2

• 2,4,2

Tags

NGSS.MS-PS1-5

What are the missing coefficients in this equation?

PCl₅ + ___ H₂O → ___ HCl + H₃PO₄

• 4, 5

• 1, 6

• 3, 8

• 2,2

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which equation is balanced?

• H₂ + Cl → HCl

• SO₂ + H₂0 → H₂SO₄

• 2Na + 2H₂O → 2NaOH + H₂

• N₂ + H₂ → 2NH₃

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What number should be in front of N₂ in this chemical equation?
___N₂ + ___F₂ → ___ NF₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-5

In the equation

2Al₂O₃ → 4Al + 3O₂

the mole ratio of Al to O₂ (Al:O₂) is

• 4:6 

• 3:4
• 4:3
• 2:3

Tags

NGSS.MS-PS1-5

Given the reaction: 4Al + 3O₂ → 2Al₂O₃
How many moles of Aluminium oxide (Al₂O₃) do you have if you have 2 moles of Al?

• 3 mole
• 2 mole
• 1 mole
• 0.5 mole

Tags

NGSS.MS-PS1-5

N₂ +  3H₂ → 2NH₃ 
What is the mole ratio of N₂:NH₃ in the above reaction?

• 1:2

• 2:1

• 2:3

• 1:3

Tags

NGSS.MS-PS1-1

2Na + S → Na₂S
What is the total number of moles of S that reacts when 4.0 moles of Na were completely consumed?

• 1
• 2
• 0.5
• 4

Tags

NGSS.MS-PS1-5