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Misha Larkins [42]
3 years ago
15

Which sample is a pure substance?

Chemistry
2 answers:
jeka57 [31]3 years ago
7 0

The correct answer is: A. a test tube of zinc oxide

Sunny_sXe [5.5K]3 years ago
6 0
A test tube of zinc oxide
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What is the molarity of a solution made with 64 grams of sodium hydroxide in 4 liters of water
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The molarity of the solution: 0,27M

Explanation:

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Use the following balanced reaction to solve:
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