SCI 155 Chap 9b: Question Preview (ID: 9116)


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Oxidation is the * of electrons and reduction is the * of electrons.
a) gain, loss b) loss, gain c) d)
When 2 pairs of electrons are shared by 2 atoms this is a
a) single bond b) double bond c) triple bond d) quadruple bond
What type of bonding occurs when atoms share electrons?
a) covalent b) hydrogen c) ionic d) metallic
Is Na2O a 'correct' formula?
a) yes b) no c) d)
Is this equation balanced? 2 CO = C + O2
a) yes b) no c) d)
Mixtures can be separated * and compounds can be separated *.
a) chemically, chemically b) chemically, physically c) physically, chemically d) physically, physically
An ionic compound forms between * and a covalent compound forms between *.
a) 2 nonmetals, 2 metals b) 2 metals, 2 nonmetals c) a metal and a nonmetal, a metal and a nonmetal d) a metal and a nonmetal, 2 nonmetals
How many oxygen atoms are in Ca(OH)2?
a) 1 b) 2 c) 3 d) 4
Metals tend to * electrons and form *.
a) lose, cations b) gain, cations c) lose, anions d) gain, anions
Nonmetals tend to * electrons and form *.
a) lose, cations b) gain, cations c) lose, anions d) gain, anions
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