Question

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

Answer 1

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.

Answer 2

Answer:

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.