Question 1

Which metric prefix means 1 × 10-9?

Accepted Answer

A)  kilo 
B)  nano 
C)  pico 
D)  micro 
E)  milli 
A)  kilo 
B)  nano 
C)  pico 
D)  micro 
E)  milli

Question 2

Which of the following statements concerning the atom is false?

Accepted Answer

A)  Chemical reactions involve only the electrons. 
B)  The atom contains protons, neutrons and electrons. 
C)  Electrons are found in orbits about the nucleus. 
D)  The nucleus contains only neutrons. 
E)  Most of the mass of the atom is found in the nucleus. 
A)  Chemical reactions involve only the electrons. 
B)  The atom contains protons, neutrons and electrons. 
C)  Electrons are found in orbits about the nucleus. 
D)  The nucleus contains only neutrons. 
E)  Most of the mass of the atom is found in the nucleus.

Question 3

How many centimeters are in 15 feet?

Accepted Answer

A)  3.1 cm 
B)  38 cm 
C)  71 cm 
D)  460 cm 
E)  570 cm 
A)  3.1 cm 
B)  38 cm 
C)  71 cm 
D)  460 cm 
E)  570 cm

Question 4

There are ____ milligrams in a kilogram.

Accepted Answer

A)  1 × 10-3 
B)  1 × 106 
C)  1 × 109 
D)  1 × 10-6 
E)  1 × 103 
A)  1 × 10-3 
B)  1 × 106 
C)  1 × 109 
D)  1 × 10-6 
E)  1 × 103

Question 5

Give an example of an Alkaline Earth Metal.

Accepted Answer

Be, Mg, Ca

Question 6

Give an example of an Alkali Metal.

Accepted Answer

Li, Na, K,

Question 7

What is the proper answer and number of significant figures for the following calculation: 2.80 × 4.2?

Accepted Answer

A)  11.7 
B)  11.76 
C)  12.0 
D)  1.2 × 101 
E)  None of these 
A)  11.7 
B)  11.76 
C)  12.0 
D)  1.2 × 101 
E)  None of these

Question 8

The electrical nature of matter can best be demonstrated by an atom's

Accepted Answer

A)  radioactivity. 
B)  atomic weight. 
C)  atomic number. 
D)  behavior on photographic paper. 
E)  behavior in a cathode ray tube. 
A)  radioactivity. 
B)  atomic weight. 
C)  atomic number. 
D)  behavior on photographic paper. 
E)  behavior in a cathode ray tube.

Question 9

A pond has dimensions of 24 m. by 25 m. by 3.0 m. What is the volume of the pond in liters?

Accepted Answer

A)  1.8 × 10-3 L 
B)  1.8 × 102 L 
C)  1.8 × 103 L 
D)  1.8 × 104 L 
E)  1.8 × 106 L 
A)  1.8 × 10-3 L 
B)  1.8 × 102 L 
C)  1.8 × 103 L 
D)  1.8 × 104 L 
E)  1.8 × 106 L

Question 10

Which sample contains the fewest atoms?

Accepted Answer

A)  10 g of C 
B)  10 g of Ne 
C)  10 g of F 
D)  10 g of N 
E)  10 g of O 
A)  10 g of C 
B)  10 g of Ne 
C)  10 g of F 
D)  10 g of N 
E)  10 g of O

Question 11

There are _____________ centiliters in a liter.

Accepted Answer

The answer of There are _____________ centiliters in a liter....

Question 12

How many liters are in 14.6 gallons?

Accepted Answer

A)  13.8 L 
B)  17.4 L 
C)  55.3 L 
D)  58.4 L 
E)  61.9 L 
A)  13.8 L 
B)  17.4 L 
C)  55.3 L 
D)  58.4 L 
E)  61.9 L

Question 13

How many grams of argon (Ar) contain the same number of atoms as 27 g of aluminum (Al)?

Accepted Answer

A)  18 g 
B)  27 g 
C)  31 g 
D)  40 g 
E)  67 g 
A)  18 g 
B)  27 g 
C)  31 g 
D)  40 g 
E)  67 g

Question 14

Calculate the number of moles represented by 21.7 g Fe.

Accepted Answer

A)  1210 moles 
B)  0.835 moles 
C)  1.20 moles 
D)  2.57 moles 
E)  0.389 moles 
A)  1210 moles 
B)  0.835 moles 
C)  1.20 moles 
D)  2.57 moles 
E)  0.389 moles

Question 15

How many atoms are in a 10.0 g sample of titanium (Ti)?

Accepted Answer

A)  1.16 × 1027 
B)  1.26 × 1023 
C)  2.20 × 1023 
D)  2.86 × 1023 
E)  5.06 × 1026 
A)  1.16 × 1027 
B)  1.26 × 1023 
C)  2.20 × 1023 
D)  2.86 × 1023 
E)  5.06 × 1026

Question 16

How many hydrogen atoms are in a 27.0 g sample of water (H2O)?

Accepted Answer

A)  1.50 
B)  2.99 
C)  4.98 × 10-24 
D)  1.81 × 1024 
E)  2.93 × 1026 
A)  1.50 
B)  2.99 
C)  4.98 × 10-24 
D)  1.81 × 1024 
E)  2.93 × 1026

Question 17

In Rutherford's gold foil experiment:

Accepted Answer

A)  the alpha particles used were attracted to the positive particles in the gold foil. 
B)  Rutherford's expectations for the experiment were proven to be correct. 
C)  neutrons were discovered. 
D)  the alpha particles mostly bounced off the foil, with most particles undergoing sharp deflections. 
E)  Rutherford concluded that there must be a compact, massive, positively charged particle inside the gold atoms. 
A)  the alpha particles used were attracted to the positive particles in the gold foil. 
B)  Rutherford's expectations for the experiment were proven to be correct. 
C)  neutrons were discovered. 
D)  the alpha particles mostly bounced off the foil, with most particles undergoing sharp deflections. 
E)  Rutherford concluded that there must be a compact, massive, positively charged particle inside the gold atoms.

Question 18

When an atom loses electrons, ____ are formed.

Accepted Answer

A)  nuclei 
B)  alpha particles 
C)  protons 
D)  neutrons 
E)  ions 
A)  nuclei 
B)  alpha particles 
C)  protons 
D)  neutrons 
E)  ions

Question 19

Radioactive atoms emit alpha and _______ particles.

Accepted Answer

The answer of Radioactive atoms emit alpha and _______ particles....

Question 20

Which of the following is correct?

Accepted Answer

A)  (81Br) has 35 protons, 35 electrons and 81 neutrons. 
B)  (34S) has 16 protons, 16 electrons and 16 neutrons. 
C)  (40Ar) has 18 protons, 18 electrons and 12 neutrons. 
D)  (59Co) has 27 protons, 27 electrons and 32 neutrons. 
E)  (48Ti) has 22 protons, 22 electrons and 24 neutrons. 
A)  (81Br) has 35 protons, 35 electrons and 81 neutrons. 
B)  (34S) has 16 protons, 16 electrons and 16 neutrons. 
C)  (40Ar) has 18 protons, 18 electrons and 12 neutrons. 
D)  (59Co) has 27 protons, 27 electrons and 32 neutrons. 
E)  (48Ti) has 22 protons, 22 electrons and 24 neutrons.

Which metric prefix means 1 × 10^-9?

Which of the following statements concerning the atom is false?

How many centimeters are in 15 feet?

There are ____ milligrams in a kilogram.

Give an example of an Alkaline Earth Metal.

Give an example of an Alkali Metal.

What is the proper answer and number of significant figures for the following calculation: 2.80 × 4.2?

The electrical nature of matter can best be demonstrated by an atom's

A pond has dimensions of 24 m. by 25 m. by 3.0 m. What is the volume of the pond in liters?

Which sample contains the fewest atoms?

There are _____________ centiliters in a liter.

How many liters are in 14.6 gallons?

How many grams of argon (Ar) contain the same number of atoms as 27 g of aluminum (Al)?

Calculate the number of moles represented by 21.7 g Fe.

How many atoms are in a 10.0 g sample of titanium (Ti)?

How many hydrogen atoms are in a 27.0 g sample of water (H₂O)?

In Rutherford's gold foil experiment:

When an atom loses electrons, ____ are formed.

Radioactive atoms emit alpha and _______ particles.

Which of the following is correct?

The Nature of Chemistry

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

Exam 2: Atoms and Elements

Which metric prefix means 1 × 10-9?

Which of the following statements concerning the atom is false?

How many centimeters are in 15 feet?

There are ____ milligrams in a kilogram.

Give an example of an Alkaline Earth Metal.

Give an example of an Alkali Metal.

What is the proper answer and number of significant figures for the following calculation: 2.80 × 4.2?

The electrical nature of matter can best be demonstrated by an atom's

A pond has dimensions of 24 m. by 25 m. by 3.0 m. What is the volume of the pond in liters?

Which sample contains the fewest atoms?

There are _____________ centiliters in a liter.

How many liters are in 14.6 gallons?

How many grams of argon (Ar) contain the same number of atoms as 27 g of aluminum (Al)?

Calculate the number of moles represented by 21.7 g Fe.

How many atoms are in a 10.0 g sample of titanium (Ti)?

How many hydrogen atoms are in a 27.0 g sample of water (H2O)?

In Rutherford's gold foil experiment:

When an atom loses electrons, ____ are formed.

Radioactive atoms emit alpha and _______ particles.

Which of the following is correct?

The Nature of Chemistry

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

Which metric prefix means 1 × 10^-9?

How many hydrogen atoms are in a 27.0 g sample of water (H₂O)?