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WorksheetsIG CHEM CHAPTER 4
Total questions: 11
Worksheet time: 11mins
What is the name of CaCO3？
calcium carbonate
potassium carbonate
calcium(II) carbonate
calcium nitrate
What the name of Mg3N2?
magnesium nitrate
magnesium nitride
magnesium dinitride
calcium nitride
What is the name of CO2?
carbon monoxide
carbon dioxide
monocarbon dioxide
What is the name of SO3?
sulfur oxide
sulfur dioxide
sulfur trioxide
silicon trioxide
What is the name of FeCl2？
iron(II) chloride
iron(III) chloride
iron dichloride
iron chloride
The Mr of calcium carbonate, CaCO3, is 100. What mass of carbon is present in 100 g of calcium carbonate?
12 g
60 g
48 g
36 g
What is the molecular formula of phosphoric acid shown in the picture?
H4PO4
H3PO4
H3PO3
H4PO3
Solid magnesium carbonate has the formula MgCO3. Calculate its relative formula mass.
86
85
84
83
What is the empirical formula of butenedioic acid?
C3H2O3
C2H2O2
CHO
C4HO2
Is relative molecular mass as same as relative formula mass ?
Yes
No
Which of the following symbols are state symbols?
s
l
g
aq
