Question

13 question (2 points)
provide the systematic name for the following ionic compounds.
1st attempt
part 1 (0.7 point)
k₃po₄
part 2 (0.7 point)
ca(no₃)₂
part 3 (0.7 point)
cr₃(po₄)₂

Explanation:

Step1: Identify cations and anions for $K_3PO_4$

$K^+$ is potassium ion, $PO_4^{3 - }$ is phosphate ion.

Step2: Name the compound

The name is potassium phosphate.

Step3: Identify cations and anions for $Ca(NO_3)_2$

$Ca^{2+}$ is calcium ion, $NO_3^-$ is nitrate ion.

Step4: Name the compound

The name is calcium nitrate.

Step5: Identify cations and anions for $Cr_3(PO_4)_2$

$Cr^{2+}$ is chromium(II) ion (as charge - balance with $PO_4^{3 - }$ requires +2 charge on Cr), $PO_4^{3 - }$ is phosphate ion.

Step6: Name the compound

The name is chromium(II) phosphate.

Answer:

Part 1: potassium phosphate
Part 2: calcium nitrate
Part 3: chromium(II) phosphate