A solution contains one or more of the following ions: Ag+, Ca2+, and Fe2+. When sodium chloride is added to the solution, no precipitate forms. When sodium sulfate is added to the solution, a white precipitate forms. Then, the precipitate is filtered off and sodium carbonate is added to the remaining solution, and a precipitate forms.
Which of the ions were present in the original solution?
Write net ionic equations for the formation of each of the precipitates observed.

Explanation:

when NaSO4 added, Ca2+ + SO42- = CaSO4

and Calcium sulphate is a white insoluble precipitate

when NaCO3 added, Fe2+ + CO32- = FeCO3

and it is a green precipitate

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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