Deck 3: Elements, Compounds, and the Periodic Table

Question 1

All of the following are alkali metals except

A)Sr.
B)Na.
C)Fr.
D)Cs.
E)Rb.

Answer 1

Sr.

Question 2

Which element is a halogen?

A)Te
B)O
C)Se
D)Uuh
E)I

Answer 2

I

Question 3

Each statement accurately describes the noble gases except for which one?

A)They were once known as the inert gases.
B)He, Ne, Ar, Kr, Xe, Rn, and Uuo are part of the group.
C)Their heavier elements do react with other elements.
D)They belong to group VIIIA (or 18).
E)They contain at least one metalloid.

Answer 3

They contain at least one metalloid.

Question 4

The transition metals begin in period ________ of the periodic table.

A)2
B)3
C)4
D)1
E)5

Question 5

In which family of elements does Ca belong?

A)alkali metals
B)alkaline earth metals
C)halogens
D)noble gases
E)transition metals

Question 6

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

A)a row.
B)a period.
C)transition elements.
D)a group or family.
E)transitive elements.

Question 7

Which of these elements has the most similar chemical properties to sulfur?

A)calcium
B)oxygen
C)phosphorus
D)bromine
E)nitrogen

Question 8

Which of these elements has the most similar chemical properties to magnesium?

A)calcium
B)sodium
C)aluminum
D)iron
E)cesium

Question 9

Which of these elements has the most similar chemical properties silicon?

A)aluminum
B)phosphorus
C)nitrogen
D)silver
E)germanium

Question 10

Some elements have properties that fit between metals and nonmetals. These elements are known most specifically as the

A)metals.
B)nonmetals.
C)halogens.
D)alkaline earth metals.
E)metalloids.

Question 11

Which metal is a liquid at room temperature (about 25°C)?

A)hydrogen
B)bromine
C)tungsten
D)mercury
E)chromium

Question 12

Which element is a gas at room temperature (about 25°C)?

A)neon
B)bromine
C)tungsten
D)mercury
E)chromium

Question 13

Diamond and graphite are different forms of which element?

A)sodium
B)carbon
C)mercury
D)gold
E)calcium

Question 14

Which of the following is not a property of metals?

A)They have a shine called a metallic luster.
B)They are good conductors of electricity.
C)They are generally poor conductors of heat.
D)They can be rolled into thin sheets.
E)Some metals are quite hard, while some are soft.

Question 15

Classify the following three elements as a metal, metalloid, or nonmetal: P, Si, Al.

A)P, metal; Si, metalloid; Al, nonmetal
B)P, metal; Al, metalloid; Si, nonmetal
C)Al, metal; P, metalloid; Si, nonmetal
D)Si, metal; Al, metalloid; P, nonmetal
E)Al, metal; Si, metalloid; P, nonmetal

Question 16

Classify the following three elements as a metal, metalloid, or nonmetal: Ti, S, Sb.

A)Ti, metal; S, metalloid; Sb, nonmetal
B)Sb, metal; S, metalloid; Ti, nonmetal
C)S, metal; Sb, metalloid; Ti, nonmetal
D)Sb, metal; Ti, metalloid; S, nonmetal
E)Ti, metal; Sb, metalloid; S, nonmetal

Question 17

Which of the following is used to represent molecular bromine?

A)Be
B)B
C)2Br
D)Br₂
E)Br

Question 18

Which combination is used to represent molecular hydrogen and atomic hydrogen, respectively?

A)H₂, H
B)He, H^-
C)H, H
D)2H, H⁺
E)Hy, H

Question 19

Which compound exists as a diatomic molecule in its free state?

A)magnesium
B)manganese
C)silicon
D)arsenic
E)chlorine

Question 20

Which compound exists as a diatomic molecule in its free state?

A)C
B)N
C)Ga
D)Ge
E)P

Question 21

Which compound exists as a diatomic molecule in its free state?

A)helium
B)fluorine
C)neon
D)argon
E)xenon

Question 22

Which compound is correctly represented as a hydrate?

A)C₂H₅OH₂⁺
B)MgSO₄·7H₂O
C)FeH₂(CO)₄
D)O₂S(OH)₂
E)[CrCl(H₂O)₅]Cl

Question 23

Which compound is correctly represented as a hydrate?

A)CuSO₄·5H₂O
B)HC₂H₃O₂
C)O₂S(OH)₂
D)H₂S₂O₇
E)C₆(H₂O)₆

Question 24

How many oxygen atoms are in one molecule of Mg(NO₃)₂?

A)1
B)2
C)3
D)5
E)6

Question 25

How many oxygen atoms are in one formula unit of Mg(NO₃)₂?

A)1
B)2
C)3
D)5
E)6

Question 26

How many hydrogen atoms are in one molecule of HC₂H₃O₂?

A)1
B)2
C)3
D)4
E)5

Question 27

How many carbon atoms are in one molecule of C₆H₆?

A)1
B)2
C)4
D)6
E)12

Question 28

The number of atoms in one formula unit of the substance, CO(NH₂)₂, is

A)4
B)5
C)7
D)8
E)10

Question 29

The number of atoms in one formula unit of C₂H₄(COOH)₂ is

A)10
B)11
C)12
D)14
E)16

Question 30

The number of atoms in one formula unit of the substance Cs₂SO₄·5H₂O is

A)4
B)17
C)22
D)25
E)33

Question 31

How many oxygen atoms are in one formula unit of Cu(NO₃)₂·5H₂O?

A)2
B)3
C)5
D)6
E)11

Question 32

The number of atoms in one formula unit of the substance (NH₄)₃Co(CN)₆ is

A)21
B)26
C)28
D)31
E)33

Question 33

How many atoms are there in one formula unit of (NH₄)₄Fe(CN)₆?

A)15
B)25
C)28
D)33
E)35

Question 34

How many atoms are there in one formula unit of NiSO₄ .7H₂O?

A)9
B)14
C)27
D)28
E)33

Question 35

How many atoms of each element are shown in the formula H₂S₂O₇?

A)2H, 2S, 7O
B)1H, 2S, 4O
C)2H, 1S, 1O
D)2H, 4S, 4O
E)1H, 1S, 1O

Question 36

How many atoms of each element shown are in the formula Ni(ClO₄)₂?

A)2Ni, 1Cl, 4O
B)1Ni, 2 Cl, 8O
C)2Ni, 1 Cl, 1O
D)2Ni, 4 Cl, 4O
E)1Ni, 1 Cl, 8O

Question 37

How many hydrogen atoms appear on the right side of the equation following equation: 4NH₃ + 3O₂ $\rarr$ 2N₂ + 6H₂O?

A)2
B)4
C)6
D)10
E)12

Question 38

How many atoms are in one molecule of Mo₂(O₂CC(CH₃)₃)₄? Hint: Remember to distribute the subscripts to all elements inside the parenthesis. Start on the inside and work your way out.

A)17
B)30
C)60
D)66
E)64

Question 39

How many atoms of each element appear on each side of the arrow in the following chemical equation? 2Fe(NO₃)₃ + 3Na₂CO₃ $\rarr$ Fe₂(CO₃)₃ + 6NaNO₃ Hint: Distribute coefficients across the entire compound for each reactant and product. Be sure to account for parenthesis.

A)2Fe, 6N, 18O, 6Na, 3C
B)2Fe, 6N, 27O, 6Na, 9C
C)2Fe, 6N, 27O, 6Na, 3C
D)2Fe, 6N, 27O, 9Na, 3C
E)2Fe, 6N, 21O, 18Na, 3C

Question 40

How many atoms of each element appear on each side of the arrow in the following chemical equation? 3Cl₃BNH₂CH₃ + 6(CH₃)₃N $\rarr$ 6(CH₃)₃NHCl + B₃N₃Cl₃(CH₃)₃ Hint: Distribute coefficients across the entire compound for each reactant and product. Be sure to account for parenthesis.

A)9Cl, 3B, 9N, 54H, 6C
B)9Cl, 3B, 9N, 69H, 21C
C)3Cl, 3B, 9N, 15H, 21C
D)9Cl, 1B, 9N, 54H, 9C
E)3Cl, 3B, 9N, 69H, 18C

Question 41

A student attempts to balance a chemical equation and comes up with the following result:8KClO₃ + C₁₂H₂₂O₁₀ $\rarr$ 8KCl + 12CO₂ + 11H₂O However, he wrote the initial equation wrong and therefore could not balance the equation. Which element(s)are not balanced in this result? Hint: Make a chart and identify how many elements you have on each side of the arrow.

A)Cl
B)O
C)H
D)O and H
E)C

Question 42

Which of these pairs of elements would be most likely to form a molecular compound?

A)P and Br
B)Cu and K
C)K and O
D)O and Zn
E)Al and Rb

Question 43

The correct formula for the carbonate ion is

A)C₂H₃O₂^-.
B)C₂O₄^2-.
C)CO₂^-.
D)CO₃^-.
E)CO₃^2-.

Question 44

When barium metal reacts with chlorine gas, it forms an ionic compound, BaCl₂. In the course of the reaction, each Ba atom

A)loses two protons.
B)loses two electrons.
C)gains two protons.
D)gains two electrons.
E)loses two neutrons.

Question 45

When barium metal reacts with chlorine gas, it forms an ionic compound, BaCl₂. In the course of the reaction, each Cl atom

A)loses one proton.
B)loses one electron.
C)gains one proton.
D)gains one electron.
E)loses one neutron.

Question 46

Write the formula for the ionic compound formed from magnesium and sulfur.

A)MgS₂
B)MgS
C)Mg₂S
D)Mg₃S₂
E)MgS₃

Question 47

Write the most likely formula for the ionic compound formed from magnesium and phosphorus.

A)MgP₂
B)Mg₃P
C)Mg₂P
D)Mg₃P₂
E)MgP₃

Question 48

An alkaline earth metal, which we will represent by the symbol X, reacts with a halogen, which we will represent by the symbol Q. What would be the formula of the resulting compound?

A)XQ
B)XQ₂
C)XQ₄
D)X₂Q
E)X₄Q

Question 49

Aluminum reacts with a second element, which we will represent by the symbol E, to form a compound whose formula is AlE₃. Element E is most probably

A)an actinide element.
B)an alkali metal.
C)a chalcogen.
D)a halogen.
E)a transition metal.

Question 50

Aluminum reacts with another element, which we will represent by the symbol Gr, to form a compound whose formula is AlGr. Element Gr is most probably

A)an actinide element.
B)group 2A element.
C)a chalcogen.
D)group 5A element.
E)a transition metal.

Question 51

Bromine reacts with a metal, which we will represent by the symbol M, to form a compound whose formula is M₂Br. Element M is most probably

A)a metalloid.
B)a group 2A element.
C)a chalcogen.
D)a group 5A element.
E)There are no elements that can react with bromine to give the formula M₂Br.

Question 52

Oxygen reacts with a metal, which we will represent by the symbol Wp, to form a compound whose formula is Wp₂O. Element Wp is most probably

A)a metalloid.
B)a group 2A element.
C)a chalcogen.
D)a group 1A element.
E)there are no elements that can react with oxygen to give the formula Wp₂O.

Question 53

Which formula is correct because it represents a known ionic compound?

A)Li₂Br
B)Pb₂I₂
C)KBr₂
D)Rb₂Se₄
E)Al₂S₃

Question 54

Which formula is correct because it represents a known ionic compound?

A)Be₂Br₄
B)Ca₂I₂
C)K₂S
D)Rb₂Br
E)Ca₂S₃

Question 55

Which formula is incorrect because it does not represent a known ionic compound?

A)BeCl₂
B)CaI₂
C)K₂S
D)RbBr
E)Ca₂O₃

Question 56

Which formula is incorrect because it does not represent a correctly written ionic compound?

A)BaCl₂
B)Al₂F₃
C)Na₂O
D)RbBr
E)CaO

Question 57

Select the examples in which the formula for the ionic compound is not written correctly or cannot exist as written. I. (NH₄)₂As
II. CuO
III. Mg(C₂H₃O)₂
IV. Na₃(HCO₃)₂

A)I only
B)II and III
C)III and IV
D)I and IV
E)I, II and IV

Question 58

What is the formula for the oxalate ion?

A)CO₃²
B)C₄O₂²
C)C₄O₄²
D)C₂O₄²
E)C₂H₃O₂

Question 59

The formula of the compound formed from the calcium ion and acetate ion is

A)CaC₂H₃O₂.
B)Ca₂C₂H₃O₂.
C)Ca₂(C₂H₃O₂)₄.
D)Ca(C₂H₃O₂)₂.
E)Ca(C₂H₃O₂)₃.

Question 60

The formula of the compound formed from the strontium ion and chromate ion is

A)SrCrO₃.
B)SrCrO₄.
C)Sr₂CrO₄.
D)Sr(CrO₄)₂.
E)Sr₂(CrO₄)₃.

Question 61

Which compound below has its formula written incorrectly?

A)Al(H₂PO₄)₃
B)Al(HCO₃)₃
C)Ca(HCO₃)₂
D)KHPO₄
E)Ca(NO₃)₂

Question 62

Which compound below has its formula written incorrectly?

A)Al(H₂CO₃)₃
B)Al(H₂PO₄)₃
C)Ba(HCO₃)₂
D)KH₂PO₄
E)Ca(NO₂)₂

Question 63

How many protons, neutrons, and electrons are in the ion, ⁵⁷Fe³⁺?

A)27 protons, 30 neutrons, and 30 electrons
B)26 protons, 31 neutrons, and 23 electrons
C)29 protons, 28 neutrons, and 26 electrons
D)26 protons, 31 neutrons, and 29 electrons
E)25 protons, 32 neutrons, and 22 electrons

Question 64

How many protons, neutrons, and electrons are in the ion, ¹²⁹Te^2-?

A)52 protons, 77 neutrons, and 50 electrons
B)53 protons, 76 neutrons, and 55 electrons
C)52 protons, 77 neutrons, and 54 electrons
D)50 protons, 79 neutrons, and 52 electrons
E)51 protons, 78 neutrons, and 53 electrons

Question 65

How many protons, neutrons, and electrons are in the ion, ³⁷Cl^-?

A)37 protons, 18 neutrons, and 37 electrons
B)18 protons, 37 neutrons, and 17 electrons
C)17 protons, 20 neutrons, and 18 electrons
D)37 protons, 20 neutrons, and 18 electrons
E)17 protons, 17 neutrons, and 37 electrons

Question 66

How many protons, neutrons, and electrons are in the cation of the compound, ⁵⁵MnP?

A)25 protons, 30 neutrons, and 25 electrons
B)23 protons, 33 neutrons, and 28 electrons
C)28 protons, 27 neutrons, and 25 electrons
D)23 protons, 32 neutrons, and 26 electrons
E)25 protons, 30 neutrons, and 22 electrons

Question 67

How many protons, neutrons, and electrons are in the anion of the compound, CrCl₃³⁷?

A)17 protons, 20 neutrons, and 18 electrons
B)18 protons, 23 neutrons, and 21 electrons
C)21 protons, 21 neutrons, and 16 electrons
D)14 protons, 23 neutrons, and 17 electrons
E)17 protons, 17 neutrons, and 20 electrons

Question 68

List the polyatomic ions, including the number of each type, present in the compound, (NH₄)₃PO₄. Hint: Think about the requirements for forming ionic compounds and how this affects the number of each ion present in the formula.

A)4N^3-, 12H⁺, PO₄^2-
B)3NH⁴⁺, 4PO₄^3-
C)N^3-, 12H⁺, P^3- ; 4O^2-
D)3NH₄⁺, PO₄^3-
E)4NH⁺, 3PO₄^3-

Question 69

List the ions, including the number of each type, present in the compound, Fe₂(C₂O₄)₃·2H₂O. Hint: Think about the requirements for forming ionic compounds and how this affects the number of each ion present in the formula.

A)2Fe³⁺, 6C⁴⁺, 12O^2-
B)3Fe⁴⁺, 2CO₄^3-; 2OH^-
C)3Fe²⁺, 3C₂O₄^2-
D)3Fe⁴⁺, 2CO₄^3-; 2H₂O^2-
E)2Fe³⁺, 3CO₂^2-; 2 H₂O

Question 70

Which compound below is correctly indicated as magnesium sulfate heptahydrate?

A)CaSO₄·2H₂O
B)MgSO₄·7H₂O
C)CuSO₄·5H₂O
D)CoCl₂·6H₂O
E)7MnSO₄·2H₂O

Question 71

The name of the compound Al(SO₄)₃ is

A)aluminum sulfide.
B)aluminum sulfate.
C)aluminum trisulfate.
D)aluminum(III)sulfate.
E)aluminum sulfite.

Question 72

What is the name of the compound, V(NO₃)₃?

A)vanadium trinitrate
B)vanadium nitrite
C)vanadium(III)nitrite
D)vanadium nitrate
E)vanadium(III)nitrate

Question 73

Which compound is correctly written as a hydride?

A)CoCl₂·6H₂O
B)HC₂H₃O₂
C)NaOH
D)CaH₂
E)C₆H₁₂O₆

Question 74

What is the name for the compound V₂O₅?

A)divanadium pentoxide
B)vanadic oxide
C)vanadium(V)oxide
D)vanadium(V)pentoxide
E)vanadous oxide

Question 75

What is the name for the compound NaCl₃?

A)sodium chlorate
B)sodium chlorite
C)sodium perchloride
D)sodium trichloride
E)There is no such compound.

Question 76

What is the name for the compound CuBr₂?

A)copper(I)bromide(II)
B)copper(II)bromide
C)copper(II)bromite
D)copper dibromide
E)cuprous bromide

Question 77

What is the correct name for the compound Na₂O?

A)disodium oxide
B)sodium oxide
C)sodium(I)oxide
D)sodium peroxide
E)sodium superoxide

Question 78

Which is the correct name for the compound FeBr₃?

A)ferrous bromide
B)iron(III)bromide
C)iron bromite
D)iron tribromide
E)iron tribromine

Question 79

What is the formula for the compound iron(II)sulfate?

A)FeSO₄
B)Fe(SO₄)₂
C)Fe₂SO₄
D)Fe₂(SO₄)₃
E)Fe₃(SO₄)₂

Question 80

Which is a correct name for the compound Hg₂Cl₂? Hint: Consider the charge on the mercury ion.

A)dimercury dichloride
B)mercuric chloride
C)mercury(I)chloride
D)mercury(II)dichloride
E)There is no correct name; the formula should be HgCl.