The Law of Conservation of Matter Practice

How many atoms of carbon (C) are in C₆H₁₂O₆?

• 3

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1

How many Sodium (Na) are in 6NaCl?

• 1
• 12
• 6

Tags

NGSS.MS-PS1-1

How many Hydrogen (H) are in 4H₂O?

• 6

• 8

• 2

• 4

Tags

NGSS.MS-PS1-1

Is this equation balanced?

• yes
• no
• Not enough information

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Is this equation balanced?

• yes
• no
• Not enough information

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What is the part of the chemical equation in green called?

Fe + S → FeS

• products

• reactants

• yield

• rational number

What is the little number after an element in a chemical formula called.

Example: H₂

• Coefficient

• Subscript

• Atom

• Equation

Balance the chemical equation

• 2H₂ + O₂ → 2H₂O

• 2H + O → 2H₂O

• H + O→ 2H₂O

• It is already balanced

Tags

NGSS.MS-PS1-5

Balance the chemical equation

• 4Na + O₂ → 2Na₂O

• 3Na + 2O₂ → 2NaO

• Na + 4O₂ → 8Na₂O

• It is already balance

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Balance the chemical equation.

• C + 2H₂ → CH₄

• 5C + H₂ + O₂ → CH₄

• 3C + 2H₂ → CH₄

• It is already balanced

Tags

NGSS.HS-PS1-7