Which polyatomic ion is a cation?

Answer 1

it is sulfate, sulfite and many more....

Answer:Common Polyatomic Ions:

-1 Charge:

· Chlorate: CO3-1

· Chlorite: ClO2-1

· Cyanide: CN-1

· Dihydrogen Phosphate: H2PO4-1

· Ethanoate: CH3COO -1

· Hydroxide: OH-1

· Hydrogen Carbonate: HCO3-1

· Hydrogen Sulfate: HSO4-1

· Hydrogen Sulfite: HSO3-1

· Hypochlorite: ClO-1

· Nitrate: NO3-1

· Nitrite: NO2-1

· Perchlorate: ClO4-1

· Permanganate: MnO4-1

· Thiocyanate: SCN-1

-2 Charge:

· Carbonate: CO3-2

· Chromate: CrO4-2

· Dichromate: Cr2O7-2

· Oxalate: C2O4-2

· Peroxide: O2-2

· Silicate: SiO3-2

· Sulfate: SO4-2

· Sulfite: SO3-2

· Thiosulfate: S2O3-2

-3 Charge:

• Phosphate: PO4-3
• Phosphite: PO3-3

+1 Charge:

• Ammonium: NH4+1

Answer 2

There is a helpful phrase for remembering a few polyatomic ions.

consonants represent the number of Oxygens

Vowels represent the amount of extra electrons

NiCK- Nitrate = NO3 (-1 charge)

the

CaMeL- Carbonate CO3 (-2 charge)

ate

CLaM- Chlorate ClO3 (-1 charge)

and

BraN- Bromate BrO3 (-1 charge)

for

SuPPeR- Sulfate SO4 (-2 charge)

in

PHoeNiX- Phosphate PO4 (-3 charge)

*If the ending is -ite instead of -ate, this means the oxygen count goes down 1.

*For every hydrogen in front, the electron count goes down 1 (charge increases)

For example, Hydrogen Carbonite (or Bicarbonite) has the formula HCO2 (-1 charge)

Perchlorate= ClO4 (-1 charge) extra oxygen

Hypochlorite= ClO (-1 charge) loses 2 oxygens from base

Other polyatomic ions include:

Hydroxide- OH (-1 charge)

Ammonium- NH4 (+1 charge)

Acetate- C2H3O2 (-1 charge)

Cynide- CN (-1 charge)

Chromate- CrO4 (-2 charge)

Answer 3

Some common polyatomic ions are toothpaste, baking soda, sodium hydrogen carbonate.

Answer 4

Phosphate is the only one from the previous answer that is polyatomic. al the others are monatomic.

Answer 5

There are no polyatomic ions on the Periodic Table.

Answer 6

For example the ammonium ion (NH4)+.