Balanced vs Unbalanced Equations

In this image, the information in red is called the_______.

• Products
• Reactants
• Chemical Subscript
• Ingredients

Tags

NGSS.MS-PS1-5

In this image, the information to the right of the arrow (in black) is called the_______.

• Product
• Reactant
• Chemical Subscript
• Final chemical

Tags

NGSS.MS-PS1-2

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

How many ELEMENTS are in the compound H₂O

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

How many ELEMENTS are in the compound O₂

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Is the following equation balanced or unbalanced ? 
Al + O₂ --> Al₂O₃

• Balanced
• Unbalanced

Tags

NGSS.MS-PS1-5

Is the following equation balanced or unbalanced ? 
N₂ +3 H₂ --> 2NH₃

• Balanced
• Unbalanced

Tags

NGSS.MS-PS1-5

How many oxygen atoms are in 2CaO₂

• 2

• 3

• 5

• 4

Tags

NGSS.MS-PS1-1

Identify the reactants in the following equation.

3HFe2O →H+2FEH+O

• H+2FEH+O

• 3HFe2O

Tags

NGSS.MS-PS1-1

Identify the products in the following equation.

3HFe2O →H+2FEH+O

• H+2FEH+O

• 3HFe2O

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2