Types of Reactions
Identify this type of reaction:
Ca(HCO3)2(s) ➞ CaO(s) + H2O(l) + 2 CO2(g)
Decomposition Reaction
What is the proper state symbol for a solution?
Determine the total number of hydrogen atoms:
3 (NH4)2SO4
24 Hydrogen Atoms
What part of the balanced chemical reaction is used to determine the mole ratio?
Coefficients
Identify this type of reaction:
CuBr2(aq) + Cl2(g) ➞ CuCl2(aq) + Br2(l)
Single Displacement Reaction
What is the proper state symbol for a precipitate in a chemical reaction?
(s)
True or False: The total mass of the reactants must equal the total mass of the products.
True
How many moles of CO2 will be produced if 36 moles of O2 are used?
1 C8H17OH(l) + 12 O2(g) ➞ 8 CO2(g) + 9 H2O(g)
24 Moles CO2
Any reaction that ends with only one product should be classified as what type?
Synthesis Reaction
What is the proper state symbol for carbon dioxide at room temperature?
(g)
Balance the following double displacement reaction. (Moderate)
__AgNO3(aq) + __Na3PO4(aq) ➞ __ NaNO3(aq) + __Ag3PO4(s)
3, 1, 3, 1
How many moles of oxygen will be produced if 5.50 moles of reactant are used?
2 H2O2(l) ➞ 2 H2O(l) + O2(g)
2.75 Moles O2
Identify this type of reaction:
2 C3H7OH(g) + 9 O2(g) ➞ 6 CO2(g) + 8 H2O(g)
Combustion Reaction
All aqueous solutions include a chemical solute dissolved in _______?
Water
Balance the following synthesis reaction.
__ S(s) + __ O2(g) ➞ __ SO3(g)
2, 3, 2
How many moles of oxygen will be produced if 8.00 moles of reactant are used?
__ KClO3(s) ➞ __ KCl(s) + __O2(g)
12.0 Moles O2
Which type reaction occurs when two ions from two compounds switch in order to form new compounds?
Double Displacement Reaction
What is the proper state symbol for water vapor?
(g)
Balance the reaction below and determine coefficients. (Moderate)
__Al(s) + __ H3PO4(aq) ➞ __ H2(g) + __AlPO4(aq)
2, 2, 3, 2
How many moles of KClO3 will be required if 30.0 moles of O2 are produced?
__ KClO3(s) ➞ __ KCl(s) + __O2(g)
Most reactions provide some observable evidence that a reaction has occurred. Name the five observable evidences of a chemical reaction.
Unexpected Color Change, New Odor, Produce a gas (bubbles), Energy Change (Heat/Light), and Precipitate Formation
What is the proper state symbol for magnesium metal shavings?
(s)
Balance the following combustion reaction. (Difficult)
__C2H6(g) + __ O2(g) ➞ __ CO2(g) + __H2O(g)
2, 7, 4, 6
How many moles of O2 will be produced if 9.00 moles of KClO3 are used?
__ KClO3(s) ➞ __ KCl(s) + __O2(g)
13.5 moles O2