Balancing Equations

Q. 

How many elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms of carbon (C) are in C₆H₁₂O₆?

• 3

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in: H₂SO₄

• 6

• 5

• 7

• 3

Tags

NGSS.MS-PS1-1

The red numbers in the image below represent ________

• subscripts

• coefficients

• I don't know, and don't want to try

• None of the answers are correct

Tags

NGSS.HS-PS1-7

The blue numbers in the image below represent ________

• I don't know, and don't want to try

• coefficients

• subscripts

• none of the answers are correct

Tags

NGSS.MS-PS1-5

The substances at the beginning of a chemical equation are called the ____

• product

• yield

• chemical symbol

• reactants

Tags

NGSS.MS-PS1-1

In the equation,   2Mg + O₂ ---> 2MgO, which are the reactants?

• Mg and O

• MgO

• Mg and MgO

• O and MgO

Tags

NGSS.MS-PS1-2

How many O's are in Al₂(SO₄)₃

• 4

• 12

• 7

• 24

Tags

NGSS.MS-PS1-1

Number of H in 3(NH₄)₂CrO₄

• 4

• 2

• 8

• 24

Tags

NGSS.MS-PS1-1

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.

• Matter can only be lost in a chemical reaction.

• Matter can only be gained in a chemical reaction.

• Matter can be gained and lost in a chemical reaction. 

Tags

NGSS.MS-PS1-5