Multiple Choice
Which of the following is the correct chemical formula for manganese(II) sulfide?
1
views
3. Chemical Reactions
Naming Ionic Compounds
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the correct name for the ionic compound with the formula CaSO_4?
A
Calcium sulfide
B
Calcium sulfur oxide
C
Calcium sulfite
D
Calcium sulfate
Verified step by step guidance1
Identify the cation and anion in the compound CaSO_4. The cation is Ca^{2+} (calcium ion) and the anion is SO_4^{2-} (sulfate ion).
Recall the common polyatomic ions and their charges. SO_4^{2-} is the sulfate ion, while SO_3^{2-} is the sulfite ion.
Since the formula contains SO_4^{2-}, the correct name for the anion part is 'sulfate'.
Combine the name of the cation (calcium) with the name of the anion (sulfate) to form the compound name: 'calcium sulfate'.
Verify that the charges balance to form a neutral compound: Ca^{2+} and SO_4^{2-} combine in a 1:1 ratio, confirming the formula CaSO_4 corresponds to calcium sulfate.
2:11mWatch next
Master Ionic Compounds Naming with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Naming Ionic Compounds practice set
Problem sets built by lead tutorsExpert video explanations