Law of Conservation of Mass Practice 3

How many total atoms are present: 2CaOH₂

• 4

• 8

• 12

• 3

Tags

NGSS.MS-PS1-1

How many total atoms present: 2Na₂O₃H₄

• 3

• 9

• 18

• 21

Tags

NGSS.MS-PS1-1

How many total atoms are present: 3Fe₂O₃

• 6

• 12

• 18

• 15

Tags

NGSS.MS-PS1-1

How many total atoms present: 4Na₃PO₄

• 15

• 32

• 45

• 60

Tags

NGSS.MS-PS1-1

How many C are present: 3C₆H₁₂O₆

• 6

• 36

• 18

• 3

Tags

NGSS.MS-PS1-1

How many S are present: 4Li₂SO₄

• 3

• 8

• 4

• 28

Tags

NGSS.MS-PS1-1

How many O are present: 2H₂O₂

• 2

• 4

• 8

• 16

Tags

NGSS.MS-PS1-1

How many total atoms are present: 3K₂SO₄

• 12

• 21

• 36

• 48

Tags

NGSS.MS-PS1-1

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

If reaction starts with 20g of reactants it should produce 

• a total of 40g of products
• a total of 10g of products
• a total of 80 g of products
• a total of 20g of products

Tags

NGSS.MS-PS1-5