3b Balancing Equations

Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe

• Yes
• No

__ Al  +  __ FeO  →  Al₂O₂  +  __ Fe

• 1, 1, 2
• 2,1,2
• 2, 2, 2
• 2,4,2

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

The substances listed on the left side of a chemical equation are the

• Products
• Coefficients
• Precipitates
• Reactants

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

How many Hydrogen (H) atoms are in NH₃O5

• 3
• 4
• 5
• 1

Tags

NGSS.MS-PS1-1

Which of the following reactions is balanced?

• 2CH₄ + O₂ -> CO₂ + H₂O
• CH₄ + 2O₂ -> CO₂ + H₂O
• CH₄ + 2O₂ -> CO₂ + 2H₂O
• None of the chemical equations are balanced.

Tags

NGSS.MS-PS1-5

Balance this equation...
H₂ + Cl₂ --> HCl

• It is balanced 
• 3H₂ + Cl_{2 -->} 6H₂Cl
• H₂ + Cl_{2 -->} 2HCl
• I don't know! Oh well.

Which equation shows magnesium sulfate plus sodium carbonate?

• MgSO₄ + Na₂CO₃
• MgCO₃+ Na₂SO₄
• MgNa₂ + CO₃SO₄
• Mg + S + Na + C

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

Which number should go in the blank?
2 Na+ _ Cl₂ -> 2 NaCl

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Name the part in red:

H₂ + O₂ -> H₂O

• Coefficient
• Product
• Reactant
• Subscript

Name the part in red:

H₂ + O₂ -> H₂O

• Coefficient
• Product
• Yield
• Subscript