Balancing Equations and Types of Reactions

Which side of a chemical equation is the reactant side?

• Left (before the yields sign)
• Right (after the yields sign)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance this equation:
 2Li + Cl₂ -> LiCl

• 2Li + Cl₂ -> 4LiCl2
• 2Li + Cl₂ -> LiCl₂
• 2Li + Cl₂ -> 2LiCl

Tags

NGSS.MS-PS1-5

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__H₂ + __S --> __H₂S

• 1,1 --> 1
• 2,2 --> 2
• 1,2 --> 1
• 1,2 --> 2

Tags

NGSS.MS-PS1-5

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.MS-PS1-5

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

AB + CD →AD + CB

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition

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

This pictures simulates what type of reaction?

• Synthesis
• Decomposition
• Single Replacement
• Double Replacement

Tags

NGSS.MS-PS1-2

Always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 

• Decomposition
• Synthesis
• Combustion
• Single Replacement

Tags

NGSS.MS-PS1-5