Multiple Choice
Which of the following correctly represents the ionic compound formed from the reaction between magnesium chloride and sodium sulfate? Include the charges on the ions.
1
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3. Chemical Reactions
Writing Ionic Compounds
Multiple Choice
Provide the molecular formula for the following compound: Copper (I) nitrate
A
CuNO3
B
Cu(NO3)2
C
Cu(NO3)3
D
CuNO2
E
Cu(NO2)2
Verified step by step guidance1
Identify the oxidation state of copper in Copper (I) nitrate. The Roman numeral I indicates that copper has a +1 oxidation state.
Determine the formula for the nitrate ion. Nitrate is a polyatomic ion with the formula NO3-.
Balance the charges between the copper ion and the nitrate ion. Since copper has a +1 charge and nitrate has a -1 charge, they combine in a 1:1 ratio to form a neutral compound.
Write the molecular formula by combining one copper ion (Cu+) with one nitrate ion (NO3-).
The molecular formula for Copper (I) nitrate is CuNO3.
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