Law of Conservation of Mass

40 grams of calcium reacts with 71 grams of chlorine to produce _______ g of calcium chloride.

• 31

• 101

• 100

• 111

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

______ g of potassium reacts with 16 g of oxygen to produce 94 g of potassium oxide.

• 88

• 110

• 50

• 78

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

14 g of lithium reacts with _____ g of sulfur to produce 46 g of lithium sulfide.

• 32

• 60

• 25

• 10

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

24 g of magnesium reacts with 38 g of fluorine to produce ______ g of magnesium fluoride.

• 10

• 24

• 14

• 62

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

88 g of strontium reacts with 160 g of bromine to produce _______ g of strontium bromide.

• 72

• 240

• 248

• 80

Tags

NGSS.MS-PS1-5

______ g of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide.

• 2

• 3

• 66

• 64

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Is the chemical equation following the Law of Conservation of Mass?

3 H₂ + N₂ → 2 NH₃

• Yes, it is following the Law

• No, it is not following the Law

Tags

NGSS.MS-PS1-5

Is the chemical equation following the Law of Conservation of Mass?

Na₂O + 2 CO₂ → 2 Na₂CO₃

• Yes, it is following the Law

• No, it is not following the Law

Tags

NGSS.MS-PS1-5

How many atoms in TOTAL make up the chemical equation below?

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

• 18 atoms total

• 72 atoms total

• 36 atoms total

• 12 atoms total

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

How many oxygen atoms in TOTAL make up the chemical equation below?

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

• 18 atoms total

• 6 atoms total

• 36 atoms total

• 2 atoms total

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1