Deck 2: Atoms, Molecules, and Ions

Question 1

Which of the following elements is chemically similar to oxygen?

A)sulfur
B)calcium
C)iron
D)nickel
E)sodium

Answer 1

sulfur

Question 2

Which of the following elements is chemically similar to magnesium?

A)sulfur
B)calcium
C)iron
D)nickel
E)potassium

Answer 2

calcium

Question 3

Complete the following chart, in order from left to right

A)(⁴⁰Zr, 21)
B)(¹⁹K, 40)
C)(²¹K, 19)
D)(⁴⁰K, 21)
E)(³⁸Sr, 19)

Answer 3

(⁴⁰K, 21)

Question 4

Which of the following are isotopes?

A)(¹⁴C and ¹³C)
B)(¹⁴C and ¹⁴N)
C)(¹⁴N and ¹⁴N^3-)
D)(¹²C and ¹²CO)
E)(¹⁴N and ¹⁴N₂)

Question 5

Atoms of the same element with different mass numbers are called

A)ions.
B)neutrons.
C)allotropes.
D)chemical families.
E)isotopes.

Question 6

Complete the following chart, in order from left to right

A)14, 7, 7, 7
B)14, 7, 14, 7
C)7, 7, 7, 7
D)7, 14, 7, 7
E)Some other answer

Question 7

In a cathode ray tube

A)electrons pass from the anode to the cathode.
B)electrons pass from the cathode to the anode.
C)protons pass from the anode to the cathode.
D)protons pass from the cathode to the anode.

Question 8

Complete the following chart, in order from left to right

A)40, 20, 20, 20
B)40, 20, 20, 18
C)20, 20, 40, 20
D)40, 20, 20, 22
E)20, 40, 20, 22

Question 9

Rutherford's experiment with alpha particle scattering by gold foil established that

A)protons are not evenly distributed throughout an atom.
B)electrons have a negative charge.
C)electrons have a positive charge.
D)atoms are made of protons, neutrons, and electrons.
E)protons are 1840 times heavier than electrons.

Question 10

Which of the following scientists developed the nuclear model of the atom?

A)John Dalton
B)Robert Millikan
C)J.J.Thomson
D)Henry Moseley
E)Ernest Rutherford

Question 11

When J.J.Thomson discovered the electron, what physical property of the electron did he measure?

A)its charge, e
B)its charge-to-mass ratio, e/m
C)its temperature, T
D)its mass, m
E)its atomic number, Z

Question 12

An atom of the isotope ¹³⁷Ba consists of how many protons (p), neutrons (n), and electrons (e)?

A)56 p, 137 n, 56 e
B)56 p, 81 n, 56 e
C)137 p, 81 n, 56 e
D)56 p, 56 n, 56 e
E)81 p, 56 n, 81 e

Question 13

Complete the following chart, in order from left to right

A)(⁴He, 2)
B)(⁴Be, 4)
C)(⁴Be, 2)
D)(⁴He, 4)
E)(²H, 2)

Question 14

Complete the following chart, in order from left to right

A)(⁹⁷Zr, 97)
B)(⁴⁰Zr, 57)
C)(⁵⁷La, 40)
D)(⁹⁷Bk, 80)
E)(⁸⁰Hg, 97)

Question 15

The scientist who determined the magnitude of the electric charge of the electron was

A)John Dalton.
B)Robert Millikan.
C)J.J.Thomson.
D)Henry Moseley.
E)R.Chang.

Question 16

Give the number of protons (p), neutrons (n), and electrons (e)in one atom of ²³⁸U.

A)146 p, 92 n, 92 e
B)92 p, 92 n, 92 e
C)92 p, 146 n, 92e
D)146 p, 28 n, 146 e
E)238 p, 146 n, 238 e

Question 17

An anion is defined as

A)a charged atom or group of atoms with a net negative charge.
B)a stable atom.
C)a group of stable atoms.
D)an atom or group of atoms with a net positive charge.

Question 18

The elements in a column of the periodic table are known as

A)metalloids.
B)a period.
C)noble gases.
D)a group.
E)nonmetals.

Question 19

Which of the following elements is chemically similar to potassium?

A)calcium
B)arsenic
C)phosphorus
D)cerium
E)cesium

Question 20

Which of the following elements is most likely to be a good conductor of electricity?

A)N
B)S
C)He
D)Cl
E)Fe

Question 21

What is the formula for the ionic compound containing calcium ions and nitrate ions?

A)Ca₃N₂
B)Ca(NO₃)₂
C)Ca₂NO₃
D)Ca₂NO₂
E)CaNO₃

Question 22

Which one of the following elements is most likely to form a 2+ ion?

A)calcium
B)carbon
C)fluorine
D)oxygen
E)sodium

Question 23

How many protons and electrons are present in one Br^- ion?

A)35 p, 35 e
B)80 p, 81 e
C)35 p, 34 e
D)35 p, 36 e
E)80 p, 34 e

Question 24

Which one of the following elements is most likely to form a 2- ion?

A)scandium
B)selenium
C)silicon
D)strontium
E)iodine

Question 25

Which of the following is an example of an empirical formula?

A)C₉H₁₂
B)C₉H₁₈Cl₂
C)C₆H₆
D)N₂O₄
E)C₂H₂O₂

Question 26

An iron(II)ion has:

A)24 electrons and a charge of 2+
B)24 electrons and a charge of 2-
C)26 electrons and a charge of 2+
D)28 electrons and a charge of 2+
E)28 electrons and a charge of 2-

Question 27

What are the ions present in the compound CH₄?

A)C⁴⁺, H⁺
B)C^4-, H⁺
C)C^-, H⁺
D)C^4- H⁴⁺
E)no ions present

Question 28

Which one of the following is an ion?

A)(B³⁺)
B)NaCl
C)He
D)(¹⁴C)
E)none of the above

Question 29

An oxide ion, O^2-, has:

A)8 protons and 10 electrons
B)10 protons and 8 electrons
C)8 protons and 9 electrons
D)8 protons and 7 electrons
E)10 protons and 7 electrons

Question 30

A phosphide ion has:

A)10 protons and 13 electrons
B)12 protons and 15 electrons
C)15 protons and 15 electrons
D)15 protons and 18 electrons
E)18 protons and 21 electrons

Question 31

What is the empirical formula for C₆H₁₄O?

A)C₆H₁₄O
B)C₃H₇O
C)C₂H₇O
D)C₁₂H₂₈O₂
E)CHO

Question 32

What are the two different ions present in the compound FeCl₃?

A)Fe²⁺, Cl₃^-
B)Fe³⁺, Cl^3-
C)Fe⁺, Cl^-
D)Fe³⁺, Cl^-
E)Fe⁺, Cl^-

Question 33

An aluminum ion, Al³⁺, has:

A)13 protons and 13 electrons
B)27 protons and 24 electrons
C)16 protons and 13 electrons
D)13 protons and 10 electrons
E)10 protons and 13 electrons

Question 34

What are the two different ions present in the compound Na₂S?

A)Na₂⁺, S^2-
B)Na⁺, S^2-
C)Na²⁺, S^2-
D)Na⁺, S^-
E)Na²⁺, S^-

Question 35

What is the empirical formula for C₁₀H₂₂O₂?

A)C₁₀H₂₂O₂
B)C₅H₁₁O
C)C₂₀H₄₄O₄
D)C₂H₁₁O
E)C₅H₁₁O₂

Question 36

What are the ions present in the compound CO₂?

A)C⁴⁺, 2 O^2-
B)C²⁺, 2 O^-
C)C²⁺, O^2-
D)C²⁺, O₂^2-
E)no ions present

Question 37

What is the ion ClO₄^- named?

A)chloride ion
B)chlorite ion
C)hypochlorite ion
D)perchlorite ion
E)perchlorate ion

Question 38

A magnesium ion, Mg²⁺, has

A)12 protons and 13 electrons.
B)24 protons and 26 electrons.
C)12 protons and 10 electrons.
D)24 protons and 22 electrons.
E)12 protons and 14 electrons.

Question 39

What are the two different ions present in the compound CaS ?

A)Ca⁺, S^-
B)Ca^2-, S²⁺
C)Ca^-, S⁺
D)Ca²⁺, S^2-
E)Ca, S

Question 40

What are the two different ions present in the compound Li₃N?

A)Li⁺, N^3-
B)Li₃⁺, N^-
C)Li₃³⁺, N^3-
D)Li⁺, N^-
E)Li³⁺, N^3-

Question 41

What are the two different ions present in the compound NH₄NO₃?

A)NH₄^-, NO₃⁺
B)NH₄⁺, NO₃^-
C)N^3-, H⁺, O^2-
D)NH₄³⁺, NO^4-
E)NH₄⁺, NO^3-

Question 42

Which is the correct formula for iron(II)phosphate?

A)Fe₂PO₄
B)Fe₃(PO₄)₂
C)Fe₂PO₃
D)Fe(PO₄)₂
E)Fe(PO₃)₂

Question 43

The formula for magnesium sulfate is

A)MnS
B)MgS
C)MnSO₃
D)MgSO₄
E)MgSO₃

Question 44

What is the formula for the ionic compound containing iron (III)ions and iodide ions?

A)FeI
B)Fe₂I
C)FeI₂
D)FeI₃
E)Fe₃I

Question 45

Name the compound CuSO₄

A)Copper (I)sulfate
B)Copper (I)sulfite
C)Copper (II)sulfite
D)Copper (II)sulfate
E)Copper (IV)sulfate

Question 46

The formula for sodium sulfide is

A)NaS.
B)K₂S.
C)NaS₂.
D)Na₂S.
E)SeS.

Question 47

What is the formula for the ionic compound containing sodium ions and nitride ions?

A)NaN
B)Na₂N
C)NNa₂
D)Na₃N
E)NNa₃

Question 48

The name for CuSO₄·5H₂O is

A)copper sulfate acid.
B)copper sulfate pentahydrate.
C)copper(II)sulfate acid.
D)copper(II)sulfate pentahydrate.
E)copper(V)sulfate hydrate.

Question 49

What is the formula for the ionic compound containing barium ions and sulfate ions?

A)BaSO₄
B)Ba₂SO₄
C)BaS
D)Ba(SO₄)₂
E)Ba₃S₂

Question 50

The name for NH₄NO₃ is

A)ammonium nitrate.
B)ammonium nitrogen trioxide.
C)ammonia nitrogen oxide.
D)hydrogen nitrogen oxide.
E)hydrogen nitrate.

Question 51

Give the formula for cobalt(II)chlorate dihydrate

A)CoCl₂·2H₂O
B)CoClO₃(H₂O)₂
C)Co(ClO₃)₂(H₂O)₂
D)Co(ClO₃)₂·2H₂O
E)Co₂(ClO₃)₃·2H₂O

Question 52

The formula for calcium phosphate is

A)CaPO₄.
B)Ca₃(PO₄)₂.
C)Ca₂(PO₄)₃.
D)Ca₃P₂.
E)Ca₃(PO₃)₂.

Question 53

What is the formula for the ionic compound containing calcium ions and oxide ions?

A)CaO
B)Ca₂O
C)CaO₂
D)Ca₃O
E)CaO₃

Question 54

What are the two different ions present in the compound Al(NO₃)₃?

A)Al³⁺, (NO₃)₃^-
B)Al⁺, NO₃^-
C)Al³⁺, NO₃^-
D)Al³⁺, NO₃^3-
E)Al⁺, (NO₃)₃^-

Question 55

Which of the following is the formula for hydroiodic acid?

A)HIO₄
B)HIO₃
C)HIO₂
D)HIO
E)HI

Question 56

Which is the formula for lead(IV)chloride?

A)Pb₄Cl
B)PbCl₂
C)PbCl₃
D)PbCl₄
E)Pb₂Cl₄

Question 57

Name the compound Al₂O₃

A)Aluminum oxide
B)Aluminum (II)oxide
C)Dialuminum trioxide
D)Aluminum trioxide
E)Aluminum (I)oxide

Question 58

Name the compound Co(NO₃)₂

A)Cobalt (I)nitrate
B)Cobalt (II)nitrate
C)Cobalt (I)nitride
D)Cobalt nitrite
E)Cobalt (II)nitride

Question 59

The name for Ba(OH)₂ is

A)barium hydrogen oxide.
B)boron hydroxide.
C)barium hydrate.
D)beryllium hydroxide.
E)barium hydroxide.

Question 60

The name for KHCO₃ is

A)calcium bicarbonate.
B)calcium carbonate.
C)potassium carbonate.
D)calcium hydrogen carbon trioxide.
E)potassium hydrogen carbonate.

Question 61

What type of compound is NaOH?

A)Binary
B)Molecular
C)Acid
D)Base
E)Hydrate

Question 62

Name the compound N₂O₄

A)nitrous oxide
B)dinitrogen pentoxide
C)nitrogen oxide
D)dinitrogen tetroxide
E)nitrogen tetroxide

Question 63

Name the compound Cl₂O₅

A)chlorine pentoxide
B)dichlorine pentoxygen
C)dichlorine pentoxide
D)chloride oxide
E)dichloride pentoxide

Question 64

What type of compound is HBrO₂?

A)Ionic
B)Binary
C)Acid
D)Base
E)Hydrate

Question 65

What type of compound is NH₄NO₃

A)Ionic
B)Molecular
C)Acid
D)Base
E)Hydrate

Question 66

Describe the contributions of Marie Curie.

Question 67

What type of compound is H₂SO₃?

A)Ionic
B)Binary
C)Acid
D)Base
E)Hydrate

Question 68

What is the law of conservation of mass?

Question 69

The straight chain hydrocarbon that contains six carbon atoms is

A)propane
B)butane
C)pentane
D)hexane
E)heptane

Question 70

Name the compounds SO₃

A)sulfur trioxide
B)sulfate
C)sulfite
D)sulfur trioxygen
E)sulfur oxide

Question 71

What type of compound is IF₅?

A)Ionic
B)Molecular
C)Acid
D)Base
E)Hydrate

Question 72

Name the compound CrO₃.

A)chromium oxide
B)chromium(II)oxide
C)chromium(III)trioxide
D)chromium(III)oxide
E)chromium(VI)oxide

Question 73

What type of compound is Mg(NO₃)₂?

A)Ionic
B)Molecular
C)Acid
D)Base
E)Hydrate

Question 74

The chemical formula for iron(II)nitrate is

A)Fe₂(NO₃)₃
B)Ir(NO₂)₂
C)Fe₂N₃
D)Fe(NO₃)₂
E)Fe(NO₂)₂

Question 75

What type of compound is NH₃?

A)Ionic
B)Ternary
C)Acid
D)Base
E)Hydrate

Question 76

Name the acid H₂SO₃ (dissolved in water).

A)Sulfuric acid
B)Sulfurous acid
C)Hydrosulfuric acid
D)Persulfuric acid
E)Hyposulfurous acid

Question 77

Name the acid H₃PO₄ (dissolved in water).

A)Phosphoric acid
B)Phosphorous acid
C)Hydrogen phosphate acid
D)Hydrophosphate acid
E)Hydrophosphoric acid

Question 78

Name the compound NO₂

A)mononitrogen dioxygen
B)nitrogen dioxide
C)dinitrogen monoxide
D)nitrogen oxide
E)nitrite

Question 79

What are the three types of radiation that can be produced by the decay of radioactive substances like uranium?

Question 80

Name the compound Co₂(SO₃)₃ .

A)cobalt sulfate
B)cobalt(II)sulfite
C)cobalt(II)sulfate
D)cobalt(III)sulfite
E)cobalt(III)sulfate