Balancing Chemistry

Determine whether the following equation is balanced or unbalanced. 2Fe + 3Cl₂ ---> FeCl₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5

Determine whether the following equations is balanced or unbalanced. S₈ + O₂ ---> 8SO₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5

Which of the following equations is balanced?

• P₄ + 3O₂ ---> 2P₂O₃

• N₄ + 3F₂ ---> 2NF₃

• 2LiF + Br₂ ---> 2LiBr + F₄

Tags

NGSS.MS-PS1-5

How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl₂ + H₂

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Which problem is balanced?
(Check ALL answers)

• PbO₂ + 2H₂

• SO₂ + H₂0 --> H₂SO₄

• 2Na + 2H₂O --> 2NaOH + H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this balanced?
Al + O₂ → 2Al₂O₃

• Yes

• No

Tags

NGSS.MS-PS1-5

What is a coefficient?

• The small number on the right of the chemical symbol.

• The large number in front of a chemical formula.

• The number in between the chemical symbols.

• The number behind a chemical formula.

Tags

NGSS.MS-PS1-5

Is the following equation balanced?
4Fe + 3O₂ --> 2Fe₂O₃

• yes

• no

Tags

NGSS.MS-PS1-5

What does the Law of Conservation of Mass say? It says, "During a chemical reaction, mass is neither _______ or destroyed."

• burned

• created

• melted

Tags

NGSS.MS-PS1-5