Chapter 4
The oxidation state of chlorine in ClO- is
+1
The oxidation state of iodine in IO3- is
+5
The balanced complete ionic equation contains which of the following terms
2Ag ^+ (aq)
The balanced molecular equation contains which one of the following terms
2AgCl(s)
When sodium chloride and lead(II) nitrate react in an aqueous solution, which of the following terms will be present in the balanced molecular equation
2NaNO3(aq)
Which of the following aqueous solutions contains the greatest number of ions
300 mL of 0.10 M CaCl2
The net ionic equation for the reaction of calcium bromide and sodium phosphate contains which of the following species
3Ca^2+ (aq)
Aqueous solutions of potassium sulfate and ammonium nitrate are mixed together. Which statement is correct
No reaction will occur
An unknown substance dissolves in water but not in benzene ( a nonpolar solvent). Molecules of what type are present in the substances
Polar
The following reactions ZnBr2(aq) +2AgNO3(aq) --> Zn(NO3)2(aq) + 2 AGBr(s) KBr(aq) + AgNO3(aq) --> AgBr(s) + KNO3(aq) Are examples of
Precipitation reactions
All of the following are weak acids except
HBr
Which of the following is a strong acid
HClO4
When solutions of strontium chloride and sodium sulfate react, which of the following is spectator ion?
Two of these
The interaction between solute particles and water molecules, which tends to cause a salt to fall apart in water is called
hydration
All of the following reactions 2Al(s) + 3Br2(l) --> 2AlBr3(s) 2Ag2)(s) --> 4Ag(s) +O2(g) CH4(l) + 2O2(g) --> CO2(g) + 2H2O(g) can be classified as
oxidation-reduction reactions
In the reaction P4(s) + 10Cl2(g) --> 4PCl5(s), the reducing agent is
phosphorus
In the reaction 2Cs(s) + Cl2(g) --> CsCl(s), Cl2 is
the oxidizing agent
Given the reaction determine the number of electrons involved in this reaction
10
Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium phosphate. What is the sum of the coefficients when the molecular equation is balanced in standard form
12
Consider the following unbalanced oxidation-reduction reaction In the balanced equation the number of electrons transferred is
2
You have 88.6mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 2.5 M solution of AgNO3(aq). Calculate the concentration of Na^+ after two solutions are mixed together
2.07 M
A 38.1-g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this solution
2.14 M
A 16.4-g sample of HF is dissolved in water to give 2.0 X 10^ 2 mL of solution. The concentration of the solution is:
4.1 M
What mass of NaOH is required to react exactly with 25.0 mL of 2.7 M H2SO4?
5.4g
A 74.28-g sample of Ba(OH)2 is dissolved in enough water to make 2.45 liters of solution. How many mL of this solution must be diluted with water in order to make 1 L of 0.100 M Ba(OH)2
565 mL
An analytical procedure requires a solution of chloride ions. How many grams of NaCl must be dissolved to make 1.95L of 0.0561 M Cl-
6.39g
What mass of calcium chloride, CaCl2, is needed to prepare 3.95 L of a 1.49 M solution
653g
1.00mL of a 3.5 X 10^-4 M solution of oleic acid is diluted with 9 mL of petroleum ether, forming solution A. Then 2 mL of solution A is diluted with 8 mL of petroleum ether, forming solution B. What is the concentration of solution B?
7.00 X 10^-6 M
Which of the following statements is(are) true? Oxidation and reduction
A, C, and D
The net ionic equation contains which of the following terms
Ag^+ (aq)
The man who discovered the essential nature of acids through solution conductivity studies is
Arrhenius
In the reaction 2Ca(s) + O2(g) --> 2CaO(s), which species is oxidized
Ca
Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium phosphate. What is the formula of the solid formed in the reaction?
Ca3(PO4)2
Aqueous solutions of sodium sulfide and copper(II) chloride are mixed together. Which statement is correct
CuS will precipitate from solution
A solid acid HX is mixed with water. Two possible solution can be obtained. Which of the following is true?
In case I, HX is acting like a strong acid, and in II, HX is acting like a weak acid
Which of the following compounds is soluble in water
K3PO4
Which of the following is not a strong base
NH3
In which of the following does nitrogen have an oxidation state of +4
NO2
You have separate solutions of HCl and H2SO4 with the same concentrations in terms of molarity. You wish to neutralize a solution of NaOH. Which acid solution would require more volume (in mL) to neutralize the base?
The HCL solution
Which of the following statements is not true
When two nonmetals react, the compound formed is ionic
