Chem
In a single-displacement reaction, an element in the activity series most likely can replace any element
below it on the list
From a complete and correctly written chemical equation, you can obtain the
relative amounts of the reactants and products.
Which of the following is true regarding single-displacement reactions?
One element replaces another in a compound.
The formation of a solid product in a chemical reaction is represented by the symbol
(g)
What is the total number of molecules that is represented by the following chemical equation? NH4NO2 --> N2 + 2H2O
4
The activity series helps to predict
whether or not a specific chemical reaction is possible.
Which of the following equations represents the balanced equation for the reaction of iron and oxygen.
4Fe + 3O2 --> 2Fe2O3
What symbol indicates a reversible reaction
<-- -->
In the expression 3CO2, the numbers 3 and 2 are, respectively,
A coefficient and a subscript
Which of the following is true regarding double-displacement reactions?
All of the Above
In the reaction described by the word equation sodium + water --> sodium hydroxide + hydrogen gas
Both (a) and (c) is a product and reactant
If Calcium is listed above Magnesium in the activity series, and magnesium is listed above Zinc, which of the following reactions is possible?
Ca(s) + MgCl2(aq)
A mixture of propane and oxygen react to form carbon dioxide and water. What type of chemical reaction is this?
Combustion
2H20(l) --> 2H2(g) + O2(g)
Decomp
Calcium Carbonate, CaCO3, reacts to form calcium oxide, CaO, and Carbon Dioxide, CO2. What type of reaction is this?
Decomposition
HCl(aq) + NaOH(aq) --> NaCl(aq) + H2O(l)
Double
Cl2(g) + 2KBr(aq) --> 2KBr(aq) + Br2(l)
Single
What type of chemical reaction does the following chemical equation represent? 2HCl(aq) + Cr(s) --> H2(g) + CrCl2(aq)
Single Displacement
You mix solution A with solution B in a beaker. Which of the following observations does not help you prove that a chemical reaction has occurred?
Solution A, Solution B, and the mixture are all yellow.
CaO(s) + H2O(l) --> Ca(OH)2(s)
Synth
In which type of reaction do two or more compounds react to form one product?
Synthesis
Which of the following indicates that a chemical equation is balanced?
The number of atoms of each element are the same on both sides of the equation.
Metal X replaces the ions of metal Y from the solution, but it cannot replace the ions of metal Z from solution. The order these metals should have in the activity series is
Z,X,Y
To balance a chemical equation, you must
adjust the coefficients.
What type of chemical reaction is represented by the following word equation? iron + oxygen --> iron(II) oxide
synthesis