Multiple Choice
Which of the following is the correct chemical formula for aluminum bromide?
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3. Chemical Reactions
Naming Ionic Compounds
Multiple Choice
Which of the following is the correct chemical formula for potassium sulfite?
A
K2SO4
B
KSO3
C
KSO4
D
K2SO3
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Verified step by step guidance1
Identify the ions involved: potassium ion (K\^+) and sulfite ion (SO\_3\^{2-}).
Determine the charge on each ion: potassium has a +1 charge, and sulfite has a -2 charge.
Balance the total positive and negative charges to make the compound electrically neutral.
Since sulfite has a -2 charge, two potassium ions (each +1) are needed to balance one sulfite ion.
Write the formula by combining the ions with the correct subscripts: K\_2SO\_3.
