Chemical Equations/Law of Conservation of Matter Quiz

What are the products of the chemical reaction pictured?

• CH₄ and CO₂

• CH₄ and O₂

• CO₂ and H₂O

• O₂ and H₂O

Tags

NGSS.MS-PS1-2

If reactants' mass is 18g , what is the mass of the reactants ?

• 15

• 36

• 81

• 18

Tags

NGSS.MS-PS1-5

What is the left part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5

In chemical reactions, what does the principle of conservation of mass mean?

• Matter is not created or destroyed.
• The total mass of the reactants is greater than the total mass of the products.
• The total mass of the reactants is less than the total mass of the products.
• Matter is not changed.
  

Tags

NGSS.MS-PS1-5

Which compounds are the PRODUCTS of this reaction?

• CO₂ + H₂O

• C₆H₁₂O₆ + O₂

• C₆H₁₂O₆ + CO₂

• H₂O + O₂

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-PS1-2

This is used to represent the number of each atom being represented. 

• A Exponent
• The Coefficient
• A Molecule
• The Subscript

Tags

NGSS.MS-PS1-1

This appears on the left side of a chemical formula, and represents how many molecules there are. 

• An Atom
• The Subscript
• A Molecule
• The Coefficient

Tags

NGSS.MS-PS1-1

If there are 4 H atoms on the reactant side, how many H atoms will be on the product side? 

• 2
• 4
• 6
• You need more information to answer this question

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How many TOTAL atoms are on the REACTANT side of this equation?
CH₄ + 2O₂ → CO₂ + 2H₂O 

• 5
• 7
• 9
• 11

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Matter can not be created nor destroyed: it can only be

• Destroyed a little bit

• Invisible

• Rearranged, changed

• None of the above

Tags

NGSS.MS-PS1-5