A chemical reaction is balanced when

Both sides have the same number of atoms

both sides have the same elements

What is the Law of Conservation of mass?

Mass is never created or destroyed

Mass is created in a chemical reaction

Mass is created in a physical change

New chemicals formed from a chemical reaction have a larger overall mass than the original reactants

Does the equation H 2 +O 2 →H 2 O follow the Law of Conservation of Mass?

No, because there are more atoms in the reactant.

Yes, because the atoms are equal.

No, because more info is needed.

No, because there are more atoms in the product.

Law of Conservation of Mass Study Quizziz

Quiz

•

Chemistry

•

8th Grade

•

Practice Problem

•

Easy

•

NGSS

MS-PS1-5, MS-PS1-1, MS-PS1-4

+2

Standards-aligned

Kassandra Wendling

Used 4+ times

FREE Resource

21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

How many Calcium atoms are in this compound?
Ca (OH)₂

2

3

1

4

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

How many Sulfur atoms are in this compound?
Al₂(SO₄)₃

4

2

3

1

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

Is this equation balanced or unbalanced?
H₂ + O₂ --> H₂O

balanced

unbalanced

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

Is this equation balanced or unbalanced?
CH₄ + 2O₂--> CO₂+ 2H₂O

balanced

unbalanced

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed?

28 g

4g

30g

12g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The number to the lower side of an element is a

Subscript

Superscript

Coefficient

Charge

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Law of Conservation of Mass Study Quizziz

21 questions

How many Calcium atoms are in this compound?
Ca (OH)₂

How many Sulfur atoms are in this compound?
Al₂(SO₄)₃

Is this equation balanced or unbalanced?
H₂ + O₂ --> H₂O

Is this equation balanced or unbalanced?
CH₄ + 2O₂--> CO₂+ 2H₂O

12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed?

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

The number to the lower side of an element is a

The number in front of a compound or element is a

A chemical reaction is balanced when

If reaction starts with 20g of reactants it should produce

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Law of Conservation of Mass Study Quizziz

21 questions

How many Calcium atoms are in this compound? Ca (OH)2

How many Sulfur atoms are in this compound? Al2(SO4)3

Is this equation balanced or unbalanced? H2 + O2 --> H2O

Is this equation balanced or unbalanced?CH4 + 2O2--> CO2+ 2H2O

12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed?

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

The number to the lower side of an element is a

The number in front of a compound or element is a

A chemical reaction is balanced when

If reaction starts with 20g of reactants it should produce

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

How many Calcium atoms are in this compound?
Ca (OH)₂

How many Sulfur atoms are in this compound?
Al₂(SO₄)₃

Is this equation balanced or unbalanced?
H₂ + O₂ --> H₂O

Is this equation balanced or unbalanced?
CH₄ + 2O₂--> CO₂+ 2H₂O