Chemical Equation

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

Chemical Equation

• A representation of a chemical reaction

• the starting materials in a chemical reaction

• the new substances that are formed in a chemical reaction

• tells how many atoms, molecules, or formula units take part in a reaction

Tags

NGSS.MS-PS1-1

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

Balance this equation... + + → + HCl

• It is balanced 

• 3H₂ + Cl_{2 -->} 6H₂Cl

• H₂ + Cl_{2 -->} 2HCl

Tags

NGSS.MS-PS1-5

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

• yes

• no

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• yes

• no

Tags

NGSS.MS-PS1-5

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

• yes

• no

Tags

NGSS.MS-PS1-5

Balance this equation:

H₂ + Cl₂ ---> HCl

• It is balanced.

• H₂ + Cl₂ ---> 2HCl

• 3H₂ + Cl₂ ---> 6HCl

• H₂ + 3Cl₂ ---> 6HCl

Tags

NGSS.MS-PS1-5