Question

Cr₂(SO₄)₃ is called

a. chromium(III) sulfate
b. chromium trisulfate
c. chromium sulfate
d. chromium(II) sulfate
e. dichromium trisulfate

Answer 1

Answer: A. chromium(iii) sulfate

Explanation: the answer is chromium (III) sulfate because chromium has an oxidation number of 3 and sulfate has an oxidation number of 2. First before you swap and drop you must put the monster in the cage (polyatomic ion). after, you do so remember that this is an ionic compound so you use roman numerals instead of prefixes! I really hope that helps!

Answer 2

The compound Cr₂(SO₄)₃ is correctly named chromium(III) sulfate, indicating the +3 oxidation state of chromium.

Step-by-step explanation:

The compound Cr₂(SO₄)₃ is known as chromium(III) sulfate. The Roman numeral (III) indicates the oxidation state of chromium, which is +3 in this compound. Each sulfate ion (SO₄²⁻) has a -2 charge, and because there are three sulfate ions, their total charge is -6. To balance the charges, two chromium ions with a +3 charge are needed, resulting in the formula Cr₂(SO₄)₃.