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Mkey [24]
2 years ago
10

For each reaction below, use the drop-down menus to select which compound will form a precipitate. Note: It is possible that no

precipitates form.
Na2S + Cd(NO3)2 → CdS + 2NaNO3

FeCl3 + 3KOH → 3KCl + Fe(OH)3

Na2CO3 + Ba(NO3)2 → BaCO3 + 2NaNO3
Chemistry
1 answer:
Dimas [21]2 years ago
8 0

Answer:

1. Cadmium sulfide

2. Iron (III) hrydroxide

3. Barium carbonate

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Two trays of lasagna are identical except for their thermal energies.
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Explanation:

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Answer:

second carbon atom from the  end

end carbon atom

Explanation:

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Carbohydrates with the structure of alkanals (-CHO) are known as aldose while those of the structure of alkanones (C=O) are known as ketose.

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A mixture consists of sand and an aqueous salt
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Answer is (4).<span>
<em>
</em>
</span>

<span><em>Explanation:</em>
</span><span>
<span>The given mixture contains an </span>insoluble solid<span> <span>and an </span></span>aqueous solution of salt.  <span>The insoluble solid is </span>sand. <span>

First </span><span>we have to separate </span>insoluble solid. <span>Sand can be separated by doing </span>filtration. When we filter the mixture sand can be seen as the residue on the filter paper. 

<span>After filtering the mixture, we should collect the </span>filtrate. <span>Filtrate is the </span>salt solution. <span>By doing </span>evaporation <span>we can get the </span>solid salt. <span>

First </span>and second choices are wrong <span>because </span>after evaporating water filtration cannot be done and salt and sand will be mixed together.<span>

Salt cannot be filtered out because the salt is soluble and it is <span>in aqueous medium. Hence, third choice is wrong</span></span></span>

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