Chemical Reaction Types and Balancing

Is this equation balanced?

• yes

• no

• Not enough information

Tags

NGSS.HS-PS1-7

Two Reactants and One Product

• Decomposition

• Synthesis

• Combustion

• Single Replacement

Tags

NGSS.MS-PS1-5

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

Which set of coefficients will correctly balance the following chemical reactions?

• 1,2,1,2

• 2,1,2,1

• 1,2,1,1

• 2,1,1,1

Tags

NGSS.HS-PS1-7

How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl₂ + H₂

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Is this equation balanced?

H₃PO₄ + KOH --> K₃PO₄ + H₂O

• yes

• no

What is the right ratio of chemicals for the balanced chemical equation?

__CO + __Fe₂O₃--> __Fe + __CO₂

• 3,1 --> 2,3

• 3,2 --> 1,1

• 3,2 --> 2,4

• 3,2 --> 2,1

Tags

NGSS.HS-PS1-7

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

• 6

• 12

• 18

• 24

Answer explanation

To balance the reaction, we need 6 molecules of CO2 on the product side, so the correct coefficient for CO2 is 6.

Tags

NGSS.HS-PS1-7