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tensa zangetsu [6.8K]
3 years ago
12

.1 Write 'a' 'an' or 'the' where is necessary.

Chemistry
1 answer:
kolezko [41]3 years ago
5 0
The answers

A) a
B) a
C) an
D) the
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Atoms

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Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

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Ryan and Abigail are conducting an experiment. They place six ice cubes into a beaker and find the combined mass. They allow the
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The mass of the ice cubes and the water will be equal because the same amount of matter is in the beaker.

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The first chemists, philosophers like, Aristotle were from which country?
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3 years ago
A solution of CaCl 2 in water forms a mixture that is 42.0 % calcium chloride by mass. If the total mass of the mixture is 839.6
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Answer : The masses of calcium chloride and water used were, 352.6 g and 487.0 g.

Explanation :

As we are given that 42.0 % calcium chloride by mass that means 42.0 grams of calcium chloride present in 100 grams of solution.

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Now we have to determine the mass of calcium chloride for 839.6 grams of solution.

As, 100 grams of solution contains 42.0 grams of calcium chloride

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Thus, the mass of calcium chloride used is, 352.6 grams.

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Mass of water = Mass of solution - Mass of calcium chloride

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