Chemical Equations Balancing Practice

Determine the balanced equation for each of the following: 
Al + HCl --> AlCl₃ + H₂

• Al + HCl --> AlCl₃ + H₂

• Al + 3HCl --> AlCl₃ + 3H₂

• Al + 3HCl --> AlCl₃ + H₂

• 2Al + 6HCl --> 2AlCl₃ + 3H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Determine the balanced equation for each of the following: 
C₂H₆O + O₂ --> CO₂ + H₂O

• C₂H₆O + 3O₂ --> 2CO₂ + H₂O

• C₂H₆O + O₂ --> CO₂ + H₂O

• C₂H₆O + 3O₂ --> 2CO₂ + 3H₂O

• 2C₂H₆O + 3O₂ --> 2CO₂ + 3H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants

• Products 

• Yields 

• Chemical Equation 

What is the number before a chemical formula called?
Ex: 2H₂ + O₂ --> 2H₂O

• Coefficient

• Subscript

• Atom

• Equation

Is the following reaction balanced?
NaHCO₃ --> Na₂CO₃ + H₂O + CO₂

• yes

• no

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the part of a chemical equation called...
2H_{2 +} O₂--> 2H₂O

• Reactants

• Products 

• Yields 

• Chemical Equation 

Balance this equation:
 2Li + Cl₂ -> LiCl

• 2Li + Cl₂ -> 4LiCl2

• 2Li + Cl₂ -> LiCl₂

• 2Li + Cl₂ -> 2LiCl

Tags

NGSS.MS-PS1-5

Balance this equation:
P₄+O₂  -->  P₂O₃

• 3 P₄+ O₂ --> 2 P₂O₃

•  P₄+ O₂ --> 2 P₂O₃

•  P₄+ 3 O₂ --> 2 P₂O₃

•  P₄+ 2 O₂ --> 3 P₂O₃

Tags

NGSS.MS-PS1-5

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

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

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5