A double-replacement reaction takes place when aqueous Na, co, reacts with aqueous Sn(NO3), according to the following equation. Na, co, + Sn(NO,) You would expect one of the products of this reaction to be
20
Sn2(CO3)2
NaNO,
O Nas
OCNO,

and .

Explanation:

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In this case, according to the described chemical reaction between sodium carbonate and tin nitrate, we can write the undergoing chemical reaction:

Thus, we notice that the products are strontium carbonate and sodium nitrate, whose formulas are and respectively.

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c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.