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zvonat [6]
3 years ago
13

For 20 points.... answer this

Chemistry
2 answers:
Allisa [31]3 years ago
8 0
The answer is B.Let it sit
Katena32 [7]3 years ago
3 0

Answer: A.  Heat the lemon juice and the water.

Explanation: Sugar can't fully dissolve in cold liquids, so adding sugar to a hot lemon juice and water will fully dissolve the sugar and Susan can add ice after the sugar dissolves so that the drink can be cold

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Which of the following is not found in the nucleus of an atom?
Ulleksa [173]
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What % of the earth's freshwater is found in glaciers and ice packs? 0.03% 0.03% 3% 3% 24.9% 24.9% 75%
Westkost [7]

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7 0
3 years ago
Calculate the number of atoms in 2.0g of hydrogen atoms?
Jobisdone [24]
First you calculate how many moles there are in 2.0 grams of hydrogen (H2) atoms.
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To work out how many moles there are,
use the formula: n(moles) = mass ÷ molar mass
n(moles) = 2 grams ÷ 2 g/mol = 1 mol

Then use Avogadro's Constant : 6.023 x 10^23
= 1 x 6.023 x 10^23
= 6.023 x 10^23

Final step is to multiply it by the number of atoms, in this case there are 2.
= 6.023 x 10^23 x 2
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that ^ should be your final answer

have a great day :)

4 0
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The percent composition for nitrogen in chromium(III) nitrate is 6%.

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