Half Equations

Is this equation balanced?

• yes
• no
• Not enough information
• Left side is balanced

Tags

NGSS.HS-PS1-7

Fill in the blanks with coefficient:
PCl₅+_ H₂O→_ HCl+H₃PO₄

• 4, 5
• 1, 6
• 3, 8
• 2,2

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What is a coefficient?

• The small number on the right of the chemical symbol.
• The large number to the left of a formula.

Tags

NGSS.MS-PS1-5

Balance this equation
_Zn+_HCl-->_ZnCl₂ +_H₂

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

Tags

NGSS.HS-PS1-7

Balance this equation.
_Mg + _Cl₂ --> _MgCl₂

• 1, 2,1
• already balanced
• 2,1,1
• 1,1,2

Tags

NGSS.HS-PS1-7

Balance this equation
_N₂ + _H₂ --> _NH₃

• 1,2,3
• 1,3,2
• 1,1,2
• 2,1,1

Tags

NGSS.HS-PS1-7

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂ --> 2Al₂ O₃

• 2
• 6
• 1
• 4

Tags

NGSS.HS-PS1-7

The blue numbers in the image below represent ________

• Charges
• coefficients
• subscripts
• none of the answers are correct

Tags

NGSS.MS-PS1-1

Number of H in 3(NH₄)₂CrO₄

• 4
• 6
• 8
• 24

Tags

NGSS.MS-PS1-1

Finish a blalanced equation:
Mg(OH)₂ --> __________

• Mg(OH)₂ --> MgOH
• Mg(OH)₂ --> MgO+ H₂O
  
• Mg(OH)₂ --> MgO+ H₂
• Mg(OH)₂ --> Mg+ H₂O

Tags

NGSS.HS-PS1-7