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storchak [24]
3 years ago
12

A student wants to remove the salt from a mixture of sand and salt in order to get only pure sand. He adds water to the mixture.

Why is this step helpful?
A Salt dissolves in water.
B Sand dissolves in water.
C The water freezes to the salt.
D The salt floats on top of the water.
Chemistry
2 answers:
raketka [301]3 years ago
5 0

Answer:

Here is one way: Add water to the mixture. Only the sugar dissolves. This is a physical change.

Explanation:

The sugar would dissolve in water. You could then pour off the solution and wash the remaining sand with a bit more water. Heat the water to evaporate it from the sugar, and the two are separated.

daser333 [38]3 years ago
5 0

Answer:

A

Explanation:

the salt mixes with the water while the sand does not

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solvent

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Answer:

Mass = 20 g

Explanation:

Given data:

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igor_vitrenko [27]

Answer:

Element

magnesium, hydrogen, chlorine, sulfur

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Explanation:

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5 0
3 years ago
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What is the mass of NaCl required to make 140 grams of a 12% solution of NaCl in water?
Makovka662 [10]

Answer:

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3 0
3 years ago
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