Writing Chemical Equations Balancing and Types of Reactions

Is this equation balanced?

• yes

• no

• Not enough information

Tags

NGSS.MS-PS1-5

Two Reactants and One Product

• Decomposition

• Synthesis

• Combustion

• Single Replacement

One reactant into several products.

• Decomposition

• Synthesis

• Combustion

• Single Replacement

One element replaces another in a compound.

• Synthesis

• Combustion

• Single Replacement

• Double Replacement

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

The metal ions in two compounds switch.

• Synthesis

• Combustion

• Single Replacement

• Double Replacement

Tags

NGSS.MS-PS1-2

PCl₅ + ___ H₂O → ___ HCl + H₃PO₄

• 4, 5

• 1, 6

• 3, 8

• 2,2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

 Mg  +  ___ HCl  →   MgCl₂  +   H₂

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced

• charge

• subscript

• random number

• coefficient

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.

• Matter can only be lost in a chemical reaction.

• Matter can only be gained in a chemical reaction.

• Matter can be gained and lost in a chemical reaction. 

Tags

NGSS.MS-PS1-5