Question

How do you write out the equation for this reaction: Sodium phosphate reacts with calcium nitrate to produce sodium nitrate plus calcium phosphate?

Answer 1

`Na_"3"PO_"4" (l) + Ca(NO_"3")_"2" (s) -> NaNO_"3" (s) + Ca_"3"(PO_"4")_"2" (s)`

Explanation:

Sodium phosphate = `Na_"3"PO_"4"`.
Calcium nitrate = `Ca(NO_"3")_"2"`.

Sodium nitrate = `NaNO_"3"`.
Calcium phosphate = `Ca_"3"(PO_"4")_"2"`.

`Na_"3"PO_"4" (aq) + Ca(NO_"3")_"2" (aq) -> NaNO_"3" (aq) + Ca_"3"(PO_"4")_"2" (s)`

States might be wrong :/

... but hope this helps :)