WorksheetsSPS 3 #1 balancing
Total questions: 10
Worksheet time: 8mins
An ENDOTHERMIC reaction would feel ______ to the touch, while an EXOTHERMIC reaction would feel ______ to the touch.
hot ; cold
cold ; hot
In order for an equation to be balanced, there must be ...
equal numbers of each type of ATOM on both sides.
more products than reactants.
more reactants than products.
equal numbers of MOLECULES on both sides.
2H2 + O2 --> 2H2O
Reactants
Products
Subscripts
Coefficients
2H2 + O2 --> 2H2O
Reactants
Products
Subscripts
Coefficients
H2 + O2 -> H2O
Coefficient
Product
Subscript
Reactants
What is the number before a molecule or atom called?
Ex: 2H2 + O2 --> 2H2O
Coefficient
Reactant
Subscript
Product
How many atoms of hydrogen (H) are in C6H12O6?
3
6
12
24
What's unbalanced about this equation?
Al + O2 --> Al2O3
Oxygen (O) only
Aluminum (Al) only
Both oxygen and aluminum
Nothing; it is balanced.
2Li + Cl2 -> LiCl
Al + O2 --> Al2O3
