Question 1

Which element is highly reactive?

Accepted Answer

A)  Cu 
B)  Kr 
C)  C 
D)  Al 
E)  K 
A)  Cu 
B)  Kr 
C)  C 
D)  Al 
E)  K

Question 2

The Millikan oil drop experiment was used to determine

Accepted Answer

A)  whether the atom was radioactive. 
B)  the electron distribution in the atom. 
C)  the atomic number of an atom. 
D)  the charge of an electron. 
E)  the nuclear character of the atom. 
A)  whether the atom was radioactive. 
B)  the electron distribution in the atom. 
C)  the atomic number of an atom. 
D)  the charge of an electron. 
E)  the nuclear character of the atom.

Question 3

Match between columns
                        Premises: smallest subatomic particle
contains most of the atom's mass
44.0 g/mol
charged chemical species
copper (Cu)
chlorine (Cl)
cerium (Ce)
12.01 amu
found in the nucleus
sodium (Na)

Accepted Answer

The Answer of lanthanide and nucleus and electron and atomic is...

Question 4

Does the metric system of measurement have any advantage over the "English" system of measurement? Explain why or why not.

Accepted Answer

The metric system has the advantage of b

Question 5

14O, 16O, 18O are called _____________.

Accepted Answer

Question 6

Which statement about electrons is true?

Accepted Answer

A)  Electrons are found in the nucleus of the atom. 
B)  Electrons are attracted to negatively charged electrodes. 
C)  All atoms have electrons as part of their structure. 
D)  Electrons have much more mass than any atom. 
E)  Electrons are positively charged. 
A)  Electrons are found in the nucleus of the atom. 
B)  Electrons are attracted to negatively charged electrodes. 
C)  All atoms have electrons as part of their structure. 
D)  Electrons have much more mass than any atom. 
E)  Electrons are positively charged.

Question 7

How many grams of carbon (C) contain the same number of atoms as 40 g of neon (Ne)?

Accepted Answer

A)  6 g 
B)  12 g 
C)  18 g 
D)  24 g 
E)  30 g 
A)  6 g 
B)  12 g 
C)  18 g 
D)  24 g 
E)  30 g

Question 8

There are ____ millimeters in a centimeter.

Accepted Answer

A)  1 × 101 
B)  1 × 102 
C)  1 × 103 
D)  1 × 10-1 
E)  1 × 10-2 
A)  1 × 101 
B)  1 × 102 
C)  1 × 103 
D)  1 × 10-1 
E)  1 × 10-2

Question 9

Which metric prefix means 1000?

Accepted Answer

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

Question 10

Calculate the number of grams in 0.928 moles of nitrogen molecules (N2).

Accepted Answer

A)  14.0 g 
B)  28.0 g 
C)  13.0 g 
D)  26.0 g 
E)  30.2 g 
A)  14.0 g 
B)  28.0 g 
C)  13.0 g 
D)  26.0 g 
E)  30.2 g

Question 11

The metric prefix _____________ means one millionth.

Accepted Answer

The answer of The metric prefix _____________ means one millionth....

Question 12

A piece of paper measures 8.50 in. by 11.0 in. Calculate the area of the piece of paper in square centimeters.

Accepted Answer

A)  14.5 cm2 
B)  93.5 cm2 
C)  237 cm2 
D)  466 cm2 
E)  603 cm2 
A)  14.5 cm2 
B)  93.5 cm2 
C)  237 cm2 
D)  466 cm2 
E)  603 cm2

Question 13

Which element can be classified as a transition metal?

Accepted Answer

A)  Ar 
B)  N 
C)  F 
D)  Co 
E)  Rb 
A)  Ar 
B)  N 
C)  F 
D)  Co 
E)  Rb

Question 14

Which sample contains the fewest atoms?

Accepted Answer

A)  50 g Xe 
B)  25 g Ca 
C)  50 g Li 
D)  125 g Fe 
E)  225 g C 
A)  50 g Xe 
B)  25 g Ca 
C)  50 g Li 
D)  125 g Fe 
E)  225 g C

Question 15

Converting 6.390 pounds to grams yields:

Accepted Answer

A)  2516 g. 
B)  2898 g. 
C)  6390 g. 
D)  14090 g. 
E)  16230 g. 
A)  2516 g. 
B)  2898 g. 
C)  6390 g. 
D)  14090 g. 
E)  16230 g.

Question 16

Which of the following statements about two isotopes is true?

Accepted Answer

A)  They will have the same atomic mass. 
B)  They will have different numbers of protons. 
C)  They will have very different chemical reactivity. 
D)  They will have the same atomic numbers. 
E)  They will have the same number of neutrons. 
A)  They will have the same atomic mass. 
B)  They will have different numbers of protons. 
C)  They will have very different chemical reactivity. 
D)  They will have the same atomic numbers. 
E)  They will have the same number of neutrons.

Question 17

How many microliters are in 89.63 L?

Accepted Answer

A)  8.963 × 1010 µL 
B)  8.963 × 107 µL 
C)  8.963 × 104 µL 
D)  8.963 × 10-4 µL 
E)  8.963 × 10-7 µL 
A)  8.963 × 1010 µL 
B)  8.963 × 107 µL 
C)  8.963 × 104 µL 
D)  8.963 × 10-4 µL 
E)  8.963 × 10-7 µL

Question 18

Which of the following is the most correct in regards to the mass spectrometer analysis of an element?

Accepted Answer

A)  A mass spectrometer provides evidence of the existence of the proton. 
B)  A mass spectrometer provides evidence of the existence of the electron. 
C)  A mass spectrometer provides evidence for the existence of different isotopes. 
D)  A mass spectrometer provides evidence that different atoms of the same element have different atomic numbers. 
E)  Both c and d are correct. 
A)  A mass spectrometer provides evidence of the existence of the proton. 
B)  A mass spectrometer provides evidence of the existence of the electron. 
C)  A mass spectrometer provides evidence for the existence of different isotopes. 
D)  A mass spectrometer provides evidence that different atoms of the same element have different atomic numbers. 
E)  Both c and d are correct.

Question 19

How many significant figures are present in each of the following: 86.9, 3.710, and 0.0492?

Accepted Answer

A)  three, three, three 
B)  three, three, four 
C)  three, four, three 
D)  three, four, four 
E)  three, four, five 
A)  three, three, three 
B)  three, three, four 
C)  three, four, three 
D)  three, four, four 
E)  three, four, five

Question 20

Which element is the least reactive and is found uncombined in nature?

Accepted Answer

A)  Au 
B)  Fe 
C)  Ne 
D)  N 
E)  Cu 
A)  Au 
B)  Fe 
C)  Ne 
D)  N 
E)  Cu

Which element is highly reactive?

The Millikan oil drop experiment was used to determine

Does the metric system of measurement have any advantage over the "English" system of measurement? Explain why or why not.

¹⁴O, ¹⁶O, ¹⁸O are called _____________.

Which statement about electrons is true?

How many grams of carbon (C) contain the same number of atoms as 40 g of neon (Ne)?

There are ____ millimeters in a centimeter.

Which metric prefix means 1000?

Calculate the number of grams in 0.928 moles of nitrogen molecules (N₂).

The metric prefix _____________ means one millionth.

A piece of paper measures 8.50 in. by 11.0 in. Calculate the area of the piece of paper in square centimeters.

Which element can be classified as a transition metal?

Which sample contains the fewest atoms?

Converting 6.390 pounds to grams yields:

Which of the following statements about two isotopes is true?

How many microliters are in 89.63 L?

Which of the following is the most correct in regards to the mass spectrometer analysis of an element?

How many significant figures are present in each of the following: 86.9, 3.710, and 0.0492?

Which element is the least reactive and is found uncombined in nature?

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 element is highly reactive?

The Millikan oil drop experiment was used to determine

Does the metric system of measurement have any advantage over the "English" system of measurement? Explain why or why not.

14O, 16O, 18O are called _____________.

Which statement about electrons is true?

How many grams of carbon (C) contain the same number of atoms as 40 g of neon (Ne)?

There are ____ millimeters in a centimeter.

Which metric prefix means 1000?

Calculate the number of grams in 0.928 moles of nitrogen molecules (N2).

The metric prefix _____________ means one millionth.

A piece of paper measures 8.50 in. by 11.0 in. Calculate the area of the piece of paper in square centimeters.

Which element can be classified as a transition metal?

Which sample contains the fewest atoms?

Converting 6.390 pounds to grams yields:

Which of the following statements about two isotopes is true?

How many microliters are in 89.63 L?

Which of the following is the most correct in regards to the mass spectrometer analysis of an element?

How many significant figures are present in each of the following: 86.9, 3.710, and 0.0492?

Which element is the least reactive and is found uncombined in nature?

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

¹⁴O, ¹⁶O, ¹⁸O are called _____________.

Calculate the number of grams in 0.928 moles of nitrogen molecules (N₂).