2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Chapters 19Chapters 12Chapter 15/16Chapter 13/14Chapters 25

Which compound can act as both a Bronsted-Lowry acid and a Bronsted-Lowry base? a. waterc. sodium hydroxide b. ammonia d. hydrochloric acid

a. water

In the reaction CO H 2 O the carbonate ion is acting as a(n) ___. HCO OH - a. Arrhenius base c. Bronsted-Lowry base b. Arrhenius acidd. Bronsted-Lowry acid

c. Bronsted-Lowry base

Which reaction illustrates amphoterism? a. H2O + H2O → H3O+ + OH–c. NaCl → Na+ + Cl– b. HCI + H2O → H3O+ + Cl–d. NaOH → Na+ + OH–

a. H2O + H2O → H3O+ + OH–

What are the acids in the following equilibrium reaction? CN - + H 2 O HCN + OH - a. CN -, H 2 Oc. CN -, OH - b. H 2 O, HCNd. H 2 O, OH -

b. H 2 O, HCN

Which of the following represents a Bronsted-Lowry conjugate acid-base pair? a. SO 3 2- and SO 2 c. H 3 O and H 2 b. CO 3 2- and COd. NH 4 + and NH 3

d. NH 4 + and NH 3

Which symbol is used for an alpha particle?

2 4 He

Which of the following materials is necessary to stop an alpha particle? a. three feet of concrete c. single sheet of aluminum foil b. three inches of leadd. single sheet of paper

d. single sheet of paper

Which of the following materials is necessary to stop a beta particle? a. three feet of concretec. thin pieces of wood b. three inches of leadd. single sheet of paper

c. thin pieces of wood

Which of the following materials is most effective for stopping gamma radiation? a. several cm of leadc. single sheet of aluminum foil b. on cm of water d. single sheet of paper

a. several cm of lead

The equation below shows the decomposition of lead nitrate. How many grams of oxygen are produced when 11.5 g NO 2 is formed?

2.00 g

. When glucose is consumed, it reacts with oxygen in the body to produce carbon dioxide, water, and energy. How many grams of carbon dioxide would be produced if 45 g of C 6 H 12 O 6 completely reacted with oxygen? C 6 H 12 O 6 + 6O 2 >> 6CO 2 + 6H 2 O a. 1.5 g c. 11 g b. 1.8 gd. 66 g

d. 66 g 45 g of C 6 H 12 O 6 1 mol of C 6 H 12 O 6 6 mol of CO 2 44 g of CO 2 = 66 g CO g of C 6 H 12 O 6 1 mol of C 6 H 12 O 6 1 mol of CO 2

How many liters of hydrogen gas are needed to react with CS 2 to produce 2.50 L of CH 4 at STP? 4H 2 (g) + CS 2 (l) CH 4 (g) + 2H 2 S(g) a Lc L b L d L

2.50 L of CH 4 1 mol of CH 4 4 mol of H L of H 2 = 10.0 L 22.4 L of CH 4 1 mol of CH 4 1 mol of H 2 d L

Glucose, C 6 H 12 O 6, is a good source of food energy. When it reacts with oxygen, carbon dioxide and water are formed. How many liters of CO 2 are produced when 126 g of glucose completely react with oxygen? C 6 H 12 O 6 (s) + 6O 2 (g) 6CO 2 (g)+ 6H 2 O(l) kcal a Lc L b L d L

d L 126 g of C 6 H 12 O 6 1 mol of C 6 H 12 O 6 6 mol of CO L of CO 2 = 94.1 L 180 g of C 6 H 12 O 6 1 mol of C 6 H 12 O 6 1 mol of CO 2

When two substances react to form products, the reactant which is used up is called the __. a. determining reagentc. excess reagent b. limiting reagentd. catalytic reagent

b. limiting reagent

What causes water’s low vapor pressure? a. Dispersion forces c. hydrogen bonding b. Covalent bondingd. ionic attractions

c. hydrogen bonding

The fact that ice is less dense than water is related to the fact that ___. a. The molecular structure of ice is much less orderly than that of water b. The molecules of ice are held to each other by covalent bonding c. Ice has a molecular structure in which water molecules are arranged randomly d. Ice has a molecular structure that is an open framework held together by hydrogen bonds

. Which of these would you expect to be soluble in the nonpolar solvent carbon disulfide? a. Water c. NaCl b. Carbon tetraiodided. Stannous iodide

b. Carbon tetraiodide

What type of compound is always an electrolyte? a. Polar covalent c. ionic b. Nonpolar covalent d. network solid

c. ionic

Which symbol is used to connect the formula of the compound with the number of water molecules in a hydrate? a. A parenthesis c. a multiplication symbol b. An asteriskd. a dot

d. a dot

Which law can be used to calculate the number of moles of a contained gas? a. Boyle’s lawc. ideal gas law b. combined gas lawd. Charles’s law

c. ideal gas law

A box with a volume of 22.4 L contains 1.0 mol of nitrogen and 2.0 mol of hydrogen at 0˙C. Which of the following statements is true? a. the total pressure in the box is 101kPa b. the partial pressures of N 2 and H 2 are equal. c. the total pressure is 202 kPa. d. the partial pressure of N 2 is 101 kPa.

If the volume of a container of air is reduced by one-half, what happens to the partial pressure of oxygen within the container? a. it is reduced by one-half.C. it is doubled b. it does not changed. it is reduced by one-fourth

C. it is doubled

. Which of the following gases is the best choice for inflating a balloon that must remain inflated for a long period of time? a. argonc. hydrogen b. oxygend. neon

c. hydrogen