Standard 8.6

Law of conservation of mass states that 

• matter is created
• matter is destroyed
• matter is neither created nor destroyed
• matter does not change

Tags

NGSS.MS-PS1-5

What are the REACTANTS :
H₂O + CO₂ → HCO + HO

• H₂O and CO₂
• HCO and HO
• H₂O ONLY
• HCO ONLY

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

REACTANTS are always on what side of the chemical equation?

• right
• left
• top
• bottom

Tags

NGSS.MS-PS1-5

Which of the following are PRODUCTS?
H₂O + CO₂ → HCO + HO

• H₂O and CO₂
• HCO and HO
• H₂O ONLY
• HCO ONLY

Tags

NGSS.MS-PS1-2

PRODUCTS are always on what side of the equation?

• right
• left
• top
• bottom

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-PS1-1

NGSS.MS-PS1-5

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

• Destroyed a little bit
• Invisible
• Transformed, changed
• None of the above

Tags

NGSS.MS-PS1-5

How many nitrogen atoms does NH₃ have?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Which compounds are the PRODUCTS of this reaction?

• CO₂ + H₂O

• C₆H₁₂O₆ + O₂

• C₆H₁₂O₆ + CO₂

• H₂O + O₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The number to the lower side of an element is a 

• Subscript
• Superscript
• Coefficient
• Charge