Balancing Equation Quiz

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

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

• Reactants
• Products 
• Yields 
• Chemical Equation 

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

• Reactants
• Products 
• Yields 
• Chemical Equation 

What is the total number of atoms present in 5Na₃PO₄

• 5
• 40
• 55
• 8

Tags

NGSS.MS-PS1-1

What is the little number after an element in a chemical equation called.
Example: H₂

• Coefficient 
• Subscript
• Atom
• Equation

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

• yes
• no

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Tags

NGSS.MS-PS1-1

​ ​ (a)   Fe + ​ (b)   HCL ---->​ (c)   FeCl₂ + ​ (d)   H₂

• 2
• 1

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

​ (a)   Na₃PO₄ + ​ (b)   CaCl₂ ----> ​ (c)   NaCl + ​ (d)   Ca₃(PO₄)₂

• 2
• 3
• 6
• 1

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

​ (a)   C₄H₁₀ + ​ (b)   O₂-----> ​ (c)   CO₂ + ​ (d)   H₂O

• 2
• 13
• 8
• 10

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2