Question

Describe what happens when the Ag+ combined with Na2CO3. what does this indicate?

Answer 1

We have
`Na_2CO_3` in an aqueous state

`Na_2CO_3` is a salt therefore being in an aqueous state will ionize

It will separate into the two ions that compose it.

When adding silver ions in an aqueous state a simple displacement reaction will occur

`Ag^(+)_((aq)) + Na_2CO_3_((aq)) \longrightarrow Ag_2CO_3_((s)) +Na^+_((aq))`

In a simple displacement reaction, an element reacts with a compound and takes the place of one of the elements of the compound, producing a different element and also a different compound.

General equation of a simple displacement reaction

`A+BC\longrightarrow AC + B`

In this case, silver displaces sodium because it is a more reactive metal.

After the reaction occurs, a precipitate of calcium carbonate is observed since this new compound is insoluble in water.

Answer 2

When Ag
`^(+)`reacts with sodium carbonate,
`Na_(2)CO_(3)`, a white precipitate forms. The reaction between Ag
`^(+)`and sodium carbonate,
`Na_(2)CO_(3)` cna be represented as:

`Ag^(+)(aq)+Na_(2)CO_(3)(aq)-->Ag_(2)CO_(3)(s)+2Na^(+)(aq)`

So when an aqueous solution containing silver ions is mixed with an aqueous solution of sodium carbonate, a white precipitate of silver carbonate is formed. This indicates that the reaction would be a precipitation reaction as the carbonate of silver is insoluble in water.