Question

please answer... nobody is answering.. I already asked 3 times pl answer fast..
and pl give ions present..
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Answer 1

Answer:

a. mgcl2

b. cao

c ch3

d. al2cl

e. caco3

hope so it helped you........

Answer 2

Answer:

Magnesium chloride is the name for the chemical compound with the formula MgCl2 and its various hydrates MgCl2(H2O)x. Anhydrous MgCl2 contains 25.5% elemental magnesium by mass.

The chemical formula of lime or quicklime is CaO. The chemical name of lime is calcium oxide. On the other hand, the chemical formula of limewater is Ca(OH)2 and the chemical name of this substance is calcium hydroxide

Copper(II) nitrate, Cu(NO₃)₂, is an inorganic compound that forms a blue crystalline solid. Anhydrous copper nitrate forms deep blue-green crystals and sublimes in a vacuum at 150-200 °C.

Aluminium chloride (AlCl3), also known as aluminium trichloride, describe compounds with the formula AlCl3(H2O)n (n = 0 or 6).

CaCO3