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WorksheetsUnit 3 Mid-Unit Review
Total questions: 25
Worksheet time: 22mins
What is the right ratio of chemicals for the balanced chemical equation?__AgNO3 + __H2S --> __Ag2S+ __HNO3
2,1 --> 1,2
1,2 --> 1,1
1,2 --> 1,2
1,2 --> 2,1
What is the right ratio of chemicals for the balanced chemical equation?
__Al + __O2--> __Al2O3
4,1 --> 2
4,3 --> 4
3,4 --> 1
4,3 --> 2
What is the right ratio of chemicals for the balanced chemical equation?
__FeCl3 + __Ca(OH)2 --> __Fe(OH)3 + __CaCl2
4,3--> 2,1
3,2 --> 3,1
2,3 --> 2,2
2,3 --> 2,3
What is the right ratio of chemicals for the balanced chemical equation?
__C2H6 + __O2 --> __CO2+ __H2O
2,4 --> 4,6
1,7 --> 4,6
2,7 --> 4,6
1,2 --> 2,3
Which problem is balanced?
PbO2 + 2H2--> H2SO4
SO2 + H2O --> H2SO4
2Na + 2HOH --> 2NaOH + H2
2Na + 2HOH --> 2NaOH + H
The formula of calcium and phosphate is
CaPO4
Ca2(PO4)3
Ca3PO4
Ca3(PO4)2
The chemical formula of Iron (III) and bromide is
FeBr
Fe(III)Br
FeBr₃
Fe₂Br₃
The chemical formula between Fe+2 and SO4-2 is:
FeSO4
Fe4(SO2)2
FeSO2
Fe2(SO4)2
The chemical formula between Ca+2 and OH- is:
Ca2OH
CaOH2
Ca(OH)2
CaOH
The chemical formula between SO4-2 and Al+3 is:
(SO4)3Al2
(SO4)2Al3
Al3(SO4)2
Al2(SO4)3
What is the correct name for the formula?
Aluminum Oxide
Aluminum (III) Oxide
Dialuminum trioxide
Trialuminum dioxide
Mg3N2
What is the name of CrN? Work backwards from the charge of 'N' to help!
chromium (II) nitride
chromium (III) nitride
chromium nitride
chromium (I) nitride
What is the formula for beryllium iodide?
Be2I
BeI
BeI2
BI2
Identify the correct balanced equation for the sentence: Solid sodium reacts with chlorine gas to produce solid sodium chloride.
NaCl(s) → Cl(g) + Na(s)
2Na(g) + Cl2(s) → 2NaCl(g)
2Na(s) + Cl2(g) → 2NaCl(s)
Na(s) + Cl(g) → NaCl(s)
Identify the correct balanced equation from the following sentence: Solid iron reacts with solid sulfur to produce solid iron (II) sulfide powder.
2Fe(s) + S(s) → Fe2S(s)
Fe(s) + S(s) → FeS(s)
Fe2(s) + S2(s) → 2FeS(s)
4Fe(s) + S2(s) → 2Fe2S(s)
