Physical Science--Review For Ch.5 Test: Question Preview (ID: 23464)


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When iron combines with oxygen to form iron(II) oxide, the charge of the iron ion is
a) Fe2+ b) Fe1+ c) Fe4+ d) Fe3+
Determine the choice that has the number of atoms of each element listed correctly for the compound C6H12O6.
a) 6 carbon, 12 hydrogen, 6 oxygen b) none of the choices c) 12 carbon, 6 hydrogen, 12 oxygen d) 12 carbon, 24 hydrogen, 12 oxygen
The name for the compound with the formula CoF2 would be written as
a) cobalt (II) fluoride b) cobalt fluorine c) cobalt fluoride d) cobalt (I) fluoride
The forces that hold different atoms or ions together are
a) chemical bonds b) physical bonds c) electric currents d) nuclear forces
Determine whether CaS is an ionic, covalent, or both (meaning it involves a polyatomic ion) types of bonds.
a) ionic b) covalent c) both d)
The name trinitrogen pentoxide tells you that this compound contains
a) three nitrogen atoms and five oxygen atoms. b) five nitrogen atoms and three oxygen atoms c) three nitrogen atoms and three oxygen atoms d) five nitrogen atoms and five oxygen atoms
An ionic bond is a bond that forms between
a) ions with opposite charges. b) the electrons of two different atoms. c) atoms with neutral charges. d) one atom's nucleus and another atom's electrons.
Determine the choice that has the number of atoms of each element listed correctly for the compound, AlPO4.
a) 1 aluminum, 1 phosphorus, 4 oxygen b) 1 aluminum, 1 phosphate c) 1 aluminum, 4 phosphorus, 1 oxygen d) none of the choices
Determine whether MgSO4 is an ionic, covalent, or both (meaning it involves a polyatomic ion) types of bonds.
a) both b) ionic c) covalent d)
What ion (charge does a sulfur atom form when it loses or gains electrons?
a) 2- b) 3- c) 2+ d) 3+
Which compound is formed from a tight network of oppositely charged ions?
a) quartz, SiO2 b) sugar, C12H22O11 c) salt, NaCl d) water, H2O
Often atoms join so that each atom will have
a) an equal number of protons and electrons. b) more electrons than either protons or neutrons. c) an outermost energy level that is full of electrons. d) an even number of electrons.
Determine whether NO3 is an ionic, covalent, or both (meaning it involves a polyatomic ion) types of bonds.
a) both b) ionic c) covalent d)
The name for the compound with the formula Fe2S3 would be written as
a) iron (III) sulfide b) iron sulfide c) iron (III) sulfate d) iron (II) sulfide
In which type of bond do atoms share electrons?
a) polyatomic bonds b) ionic bonds c) metallic bonds d) covalent bonds
When vanadium combines with bromine to form vanadium (III) bromide, the charge of the vanadium ion is
a) V1+ b) V2+ c) V3+ d) V4+
A carbon atom can bond to four other atoms because it has
a) four different cations. b) two inner energy levels. c) four valence electrons. d) no protons in its nucleus.
The anion formed from an oxygen atom is called a(n)
a) carbon dioxide b) oxide ion c) nitrous oxide d) oxygen ion
Covalent bonds are formed between
a) nonmetal atoms. b) metal atoms. c) compounds. d) ions.
How many valence electrons does a calcium atom have?
a) 2 b) 4 c) 6 d) none of the choices
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