The following list contains some common polyatomic ions. Using the charge on these ions and the idea of valence, predict the formulas for the following.

nitrate NO3 - phosphate PO4³-

sulfate SO4² - acetate C2H3O2 -

ammonium NH4 4 chromate CrO4²-

carbonate CO3² - dichromate Cr2O7²-

permanganate MnO4 - sulfide S²-

sodium carbonate

potassium permanganate

Question

Chemistry

Haley May

23 March, 18:24

The following list contains some common polyatomic ions. Using the charge on these ions and the idea of valence, predict the formulas for the following.

nitrate NO3 - phosphate PO4³-

sulfate SO4² - acetate C2H3O2 -

ammonium NH4 4 chromate CrO4²-

carbonate CO3² - dichromate Cr2O7²-

permanganate MnO4 - sulfide S²-

sodium carbonate

potassium permanganate

+3

Answers (1)

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Mayo · Answer 1

Sodium carbonate - chemical formula: Na2CO3

- water-soluble sodium salt of carbonic acid with alkalinizing property

- also known as Disodium carbonate or Carbonic acid disodium salt

potassium permanganate - chemical formula: KMnO4

- inorganic chemical compound and is used for medication

- purplish colored crystalline solid

- noncombustible but accelerates the burning of combustible materials