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Natali [406]
3 years ago
8

How can you tell if something is a mixture of a pure substance

Chemistry
1 answer:
Alenkasestr [34]3 years ago
4 0

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.

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Katyanochek1 [597]

Answer:

The correct answer is b

Explanation:

8 0
3 years ago
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The ka of acetic acid ch3co2h is 1.8 x10-5. what is the ph
AysviL [449]
You must know the concentration of the acetic acid. Suppose the concentration is 0.1 M. The solution is as follows:

            CH₃COOH → CH₃COO⁻ + H⁺
 I                  0.1               0              0
C                 -x                +x            +x
E              0.1 - x             x               x

Ka = (x)(x)/(0.1 - x)
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Solving for x,
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pH = -log[H⁺] = -log(1.333×10⁻³)
pH = 2.88

6 0
3 years ago
6. What is the production of a magnetic field by electric current called.
nirvana33 [79]
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Eroded soil carried off by water, wind, glaciers, or gravity is called __.
ankoles [38]
A. Sediment

Hope this helps!
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3 years ago
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Answer:

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4 years ago
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