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Sever21 [200]
3 years ago
13

Which process is a chemical change

Chemistry
2 answers:
hichkok12 [17]3 years ago
5 0
The process of a chemical change is when it occur when a substance called chemical synthesis or alternatively chemical decomposition into two or more different substances
Airida [17]3 years ago
5 0

Answer:

Loss of atmospheric ozone

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A mass of 100.0 g of NaCl is added to 100.0 mL of water, but not all of it dissolves. A mass of 59.5 grams of NaCl solid remains
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Answer:

The molarity of the dissolved NaCl is 6.93 M

Explanation:

Step 1: Data given

Mass of NaCl = 100.0 grams

Volume of water = 100.0 mL = 0.1 L

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Molar mass NaCl= 58.44 g/mol

Step 2: Calculate the dissolved mass of NaCl

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Step 3: Calculate moles

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Molarity dissolved NaCl = 0.693 moles / 0.1 L

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The molarity of the dissolved NaCl is 6.93 M

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