chemical equations 1 2022

What does the number ₃ represent in 4NH₃?

• Subscript

• Superscript

• Coefficient

What does the number 4 represent in 4NH₃?

• Subscript

• Superscript

• Coefficient

Tags

NGSS.MS-PS1-1

In the equation shown, what are the reactant(s)?

• N₂ + H₂

• NH₃

To balance an equation you should:

• ONLY change subscripts.

• ONLY change coefficients.

• Change BOTH subscripts and coefficients.

Tags

NGSS.MS-PS1-5

What is the total number of atoms present in 5Na₃PO₄

• 5
• 40
• 55
• 8

Tags

NGSS.MS-PS1-1

Is the following reaction balanced?
2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

• yes
• no

Tags

NGSS.HS-PS1-7

Is the following reaction balanced?
NaHCO₃ --> Na₂CO₃ + H₂O + CO₂

• yes
• no

Which coefficients would balance this chemical equation? _K + _Cl₂ ---> _KCl

• 1,1,1

• 1,2,2

• 1,1,2

• 2,1,2

Which coefficients would balance this chemical equation? _Fe₂O₃ ---> _Fe + _O₂

• 2,1,2

• 2,4,3

• 1,1,1

• 1,3,2

Tags

NGSS.MS-PS1-5

Which of the following equations is balanced?

• P₄ + 3O₂ ---> 2P₂O₃

• N₄ + 3F₂ ---> 2NF₃

• 2LiF + Br₂ ---> 2LiBr + F₄