complete the following table: some polyatomic ions name chemical formula hydronium cation phosphate anion…
complete the following table: some polyatomic ions name chemical formula hydronium cation phosphate anion carbonate anion cyanide anion
Answer
Explanation:
Step1: Recall hydronium cation formula
The hydronium cation is formed when a water - molecule accepts a proton. Its chemical formula is $H_3O^+$.
Step2: Recall phosphate anion formula
The phosphate anion has a charge of - 3 and consists of one phosphorus atom and four oxygen atoms. Its chemical formula is $PO_{4}^{3 - }$.
Step3: Recall carbonate anion formula
The carbonate anion has a charge of - 2 and consists of one carbon atom and three oxygen atoms. Its chemical formula is $CO_{3}^{2 - }$.
Step4: Recall cyanide anion formula
The cyanide anion has a charge of - 1 and consists of one carbon atom and one nitrogen atom. Its chemical formula is $CN^-$.
Answer:
| name | chemical formula |
|---|---|
| hydronium cation | $H_3O^+$ |
| phosphate anion | $PO_{4}^{3 - }$ |
| carbonate anion | $CO_{3}^{2 - }$ |
| cyanide anion | $CN^-$ |