Balancing Equations/Reaction Types

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Al + __O₂--> __Al₂O₃

• 4,1 --> 2
• 4,3 --> 4
• 3,4 --> 1
• 4,3 --> 2

Tags

NGSS.HS-PS1-7

Si + S₈ →Si₂S₄

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Tags

NGSS.HS-PS1-2

Pb(NO₃)₂ →PbO + NO₂ + O₂

• Synthesis

• Decomposition

• Single replacement

• Combustion

Cu + 2Ag(NO₃) → 2Ag + Cu(NO₃)

• Synthesis Reaction

• Decomposition Reaction

• Single Replacement Reaction

• Double Replacement Reaction

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Balancing this reaction:

____ CH₄ + ____ O₂ ---> ___ CO₂ + ____ H₂O

• 2,1,3,1

• 1,2,1,2

• 1,2,2,1

• 2,1,1,2

Tags

NGSS.HS-PS1-7

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

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-7

What coefficients are needed to balance... __P₄ + __O₂ →__P₂O₃

• 1,3,2
• 1,1,1
• 1,2,3
• 2,1,2

What coefficients are needed to balance... __CH₄ + __O₂ → __CO₂ + __H₂O

• 2,1,2,1
• 1,2,1,2
• 1,1,1,1
• 1,3,1,3

Tags

NGSS.HS-PS1-7

Identify the following chemical reaction.

3 HBr + 1 Al(OH)₃ ----> 3 H­₂O + 1 AlBr₃

• Synthesis (or combination)

• Decomposition

• Single displacement

• Double displacement

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Balance this reaction: ____ HCN + ____ CuSO₄ ---->____ H₂SO₄ + ____ Cu(CN)₂

• 2,1,1,2
• 2,1,1,1
• 1,2,2,1
• 1,2,1,1