WorksheetsBalance me plz
Total questions: 15
Worksheet time: 20mins
Example: H2
What does the number 4 represent in 4NH3?
Subscript
Superscript
Coefficient
Fe + S --> FeS
2H2 + O2 --> 2H2O
The Law of Conservation of Matter
tells how many atoms of an element are contained in one molecule or formula unit.
the starting materials in a chemical reaction
the new substances that are formed in a chemical reaction
A law stating that atoms are not created or destroyed during a chemical reaction.
N2+O2--> _NO
Mg + __HCl ---> MgCl2 + H2
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
2,6,3,2
it's already balanced
4,12,3,4
2,1,4,5
In order to balance the equation below, what coefficients should be used?
__CO + __Fe2O3--> __Fe + __CO2
What are the coefficients that would properly balance this equation?
__Al + __O2--> __Al2O3
4,1 --> 2
4,3 --> 4
3,4 --> 1
4,3 --> 2
Balance the following equation:
___ H2+ ___ O2→___ H2O
1, 1, 3
2, 2, 2
1, 2, 1
2,1, 2
Balance the following equation:
___ SeCl6+ ___ O2→___ SeO2+____Cl2
1, 1, 1, 3
2, 1, 2, 1
1, 2, 1, 2
2, 2, 2, 4
_Zn+_HCl-->_ZnCl2 +_H2
