Acompound was found to be soluble in water. it was also found that addition of acid to an aqueous solution of this compound resulted in the formation of carbon dioxide. which one of the following cations would form a precipitate when added to an aqueous solution of this compound?

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

fe 55.85 g/mol and h2o 18.02 g/mol.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.

answermeridional ;