Balancing Equations Practice

Balance this equation

_Al +_HCl --> _H₂ +_AlCl₃

• 2,6,3,2

• it's already balanced

• 4,12,3,4

• 2,1,4,5

Tags

NGSS.HS-PS1-7

The numbers needed to balance the equation are:

• 2, 7, 6, 4
• 2, 1, 3, 2
• 1, 1, 3, 2
• 2, 3, 1, 3

Tags

NGSS.HS-PS1-7

The numbers needed to balance the equation are:

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

Tags

NGSS.HS-PS1-7

The numbers needed to balance the equation are:

• 2, 7, 6, 4
• 2, 1, 3, 2
• 3, 1, 1, 3
• 2, 3, 1, 3

Tags

NGSS.HS-PS1-7

The numbers needed to balance the equation are:

• 2, 7, 6, 4

• 2, 3, 1, 6

• 3, 1, 1, 3

• 1, 6, 2, 6

Tags

NGSS.HS-PS1-7

The numbers needed to balance the equation are:

• 2, 7, 6, 4
• 2, 3, 2, 6
• 4, 3, 1, 12
• 1, 6, 2, 6

Tags

NGSS.HS-PS1-7

PCl₅  +  ___ H₂O  →  ___ HCl  +   H₃PO₄

• 4, 5
• 1, 6
• 3, 8
• 2,2

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

Balance this equation.
_SnO₂ +_H₂-->_Sn +_H₂O

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

Tags

NGSS.HS-PS1-7

Balance this equation.
_CH₄ + _O₂ --> _CO₂ + _H₂O

• 1,2,1,1
• 2,1,2,1
• 1,2,1,2
• 0,2,0,2

Tags

NGSS.HS-PS1-7

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.HS-PS1-7