U4L3 - Balancing Chemical Reactions 2

Balance the following equation:

___C₃H₈ +___O₂ --> ___CO₂ + ___H₂O

• 1,5,3,4

• 2,10,6,8

• already balanced

• 1,5,5,4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance the following equation:

__(NH₄)₃PO₄ + __Pb(NO₃)₄ --> __Pb₃(PO₄)₄ + __NH₄NO₃

• 2,1,1,6

• 1,2,2,3

• 4,3,1,12

• 4,2,1,12

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance the following equation:

__BF₃ + __Li₂SO₃ --> __B₂(SO₃)₃ + __LiF

• 2,3,1,3

• 2,3,1,6

• 4,4,2,12

• 3,3,1,9

Tags

NGSS.MS-PS1-5

Balance the following equation:

_P₄+_O₂ → _P₂O₃

• 3 P₄+1 O₂ → 2 P₂O₃

• 1 P₄+1 O₂ → 2 P₂O₃

• 1 P₄+ 3 O₂ → 2 P₂O₃

• 1 P₄+ 2 O₂ → 3 P₂O₃

Tags

NGSS.MS-PS1-5

Balance the following equation:

_AgNO₃ + _Cu →_Cu(NO₃)₂ + _Ag

• 2 AgNO₃ + 2 Cu → 3 Cu(NO₃)₂ + 1 Ag

• 2 AgNO₃ + 1 Cu → 1 Cu(NO₃)₂ + 2 Ag

• 1 AgNO₃ + 2 Cu → 2 Cu(NO₃)₂ + 1 Ag

• 3 AgNO₃ + 2 Cu → 3 Cu(NO₃)₂ + 2 Ag

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance the following equation:

_Al + _HCl →_H₂ + _AlCl₃

• 2 Al + 2 HCl → 2 H₂ + 6 AlCl₃

• 3 Al + 3 HCl → 6 H₂ + 2 AlCl₃

• 1 Al + 1 HCl → 3 H₂ + 1 AlCl₃

• 2 Al + 6 HCl → 3 H₂ + 2 AlCl₃

Tags

NGSS.MS-PS1-5

Balance this equation,            Al₂O₃ ---> Al + O₂ 

• Cannot be balanced
• 2Al₂O₃ ---> 2Al + 3O₂ 
• 2Al₂O₃ ---> 4Al + 3O₂ 
• 3Al₂O₃ ---> 2Al + O₂ 

Tags

NGSS.MS-PS1-5

The number in front of a chemical formula or compound in a chemical equation is the ___________.

• coefficient

• product

• physical

• chemical

Substances that enter into a chemical reaction (found to the left side of the arrow) are called the

• products

• reactants

• chemical

• balanced equation

In every balanced chemical equation, each side of the equation has the same number of ____.  

• coefficients
• moles
• molecules
• atoms of each element

Tags

NGSS.MS-PS1-5