Balance

Balance this equation...
H₂ + Cl₂ --> HCl

• It is balanced 

• 3H₂ + Cl_{2 -->} 6H₂Cl

• H₂ + Cl_{2 --> 2HCl}

• I don't know! Oh well.

Tags

NGSS.MS-PS1-5

Balance this equation.
_Mg + _Cl₂ --> _MgCl₂

• 1, 2,1

• already balanced

• 2,1,1

• 1,1,2

Tags

NGSS.MS-PS1-5

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂ --> 2Al₂ O₃

• 2

• 6

• 1

• 4

Tags

NGSS.MS-PS1-1

Define the term 'balanced diet'.

• A diet containing some nutrients in the correct proportions.

• A diet containing most nutrients in the correct proportions.

• A diet containing none nutrients in the correct proportions.

• A diet containing all nutrients in the correct proportions.

When energy intake decreases and energy expenditure increases, body weight ______________.

• remains the same

• goes up

• goes down

• is unstable

Tags

NGSS.HS-LS1-3

Which component of a healthy, balanced diet helps with constipation? 

• Fibre

• Fats

• Minerals

• Protein

Balance this equation: H₂ + Cl₂ ---> HCl

• It is balanced.

• H₂ + Cl₂ ---> 2HCl

• 3H₂ + Cl₂ ---> 6HCl

• H₂ + 3Cl₂ ---> 6HCl

Tags

NGSS.MS-PS1-5

Which number should go in the blank?
_ H₂ + O₂ -> 2 H₂O

• 1

• 2

• 3

• 0

Tags

NGSS.MS-PS1-5

Balance the chemical equation: @@ ext{C}_3 ext{H}_8 + ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@

• @@ ext{C}_3 ext{H}_8 + 5 ext{O}_2 ightarrow 3 ext{CO}_2 + 4 ext{H}_2 ext{O}@@

• @@ ext{C}_3 ext{H}_8 + 4 ext{O}_2 ightarrow 3 ext{CO}_2 + 4 ext{H}_2 ext{O}@@

• @@ ext{C}_3 ext{H}_8 + 6 ext{O}_2 ightarrow 3 ext{CO}_2 + 4 ext{H}_2 ext{O}@@

• @@ ext{C}_3 ext{H}_8 + 5 ext{O}_2 ightarrow 4 ext{CO}_2 + 3 ext{H}_2 ext{O}@@

Tags

NGSS.MS-PS1-5

Which of the following is a balanced equation for the reaction of hydrogen gas with nitrogen gas to form ammonia?

• @@ ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@

• @@ ext{N}_2 + ext{H}_2 ightarrow ext{NH}_3@@

• @@2 ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@

• @@ ext{N}_2 + 2 ext{H}_2 ightarrow 2 ext{NH}_3@@

Tags

NGSS.MS-PS1-5