Review 1.A.2 Question Preview (ID: 44840)
Review For Objective 1.A.2.
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What is the simplest formula for a compound made of magnesium (Mg) and chlorine (Cl)
a) MgCl
b) MgCl2
c) Mg2Cl
d) Mg2Cl2
Magnesium (Mg) has ______ valence electrons
a) 1
b) 2
c) 3
d) none of these
Chlorine (Cl) has _____ valence electrons
a) 1
b) 2
c) 3
d) none of these
Potassium (K) forms an ion that is ________ called a(n) _____.
a) positive, cation
b) positive, anion
c) negative, cation
d) negative, anion
Sulfur (S) forms an ion that is ________ called a(n) _____.
a) positive, cation
b) positive, anion
c) negative, cation
d) negative, anion
What are the products of hydrocarbon combustion?
a) salt
b) carbon dioxide
c) smoke
d) water and carbon dioxide
Products have a mass that is ________ than the reactants
a) more
b) less
c) equal to
d) none of these
Classify this reaction type: 2 K + 2 H2O -- 2 KOH + H2
a) synthesis
b) decomposition
c) single displacement
d) double displacement
Classify this reaction type: 4 Cr + 3 O2 -- 2 Cr2O3
a) synthesis
b) decomposition
c) single displacement
d) double displacement
Classify this reaction type: 2 NaClO3 -- 2 NaCl + 3 O2
a) synthesis
b) decomposition
c) single displacement
d) double displacement
Classify this reaction type: 3 AgNO3 + K3PO4 -- Ag3PO4 + 3 KNO3
a) synthesis
b) combustion
c) single displacement
d) double displacement
Classify this reaction type: 2 C2H2 + 5 O2 -- 4 CO2 + 2 H2O
a) synthesis
b) combustion
c) single displacement
d) double displacement
is the following equation balanced? BaCO3 -- BaO + CO2
a) yes
b) no
c)
d)
Which of the following shows the correct balanced equation
a) H2 + O2 → H2O
b) H2 + 2 O2 → H2O
c) 2 H2 + 2 O2 → 2 H2O
d) 2 H2 + O2 → 2 H2O
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