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a_sh-v [17]
3 years ago
10

Which of the following describes a compound

Chemistry
1 answer:
andrey2020 [161]3 years ago
5 0

A Compound is formed chemically. A compound has a definite composition . So here Carbon reacts with Oxygen to form Carbon dioxide which is a compound

you need to put the choices

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Dana is trying to determine if an unknown sample is a pure substance or not. The sample has a cloudy white color, and it seems e
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Dana filtered the sample and larger granules of the sample were left behind.

Explanation:

If a substance is pure, it will have a uniform composition throughout. It will not separate into particles of various sizes.

One of the characteristics of pure substances is that they are homogeneous. A mixture is definitely made up of particles of various sizes.

Since the particles was filtered and larger granules were left behind, the sample has been separated by a physical method (filtration). Only a mixture can be separated by physical methods. It is not a pure substance.

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4 years ago
Write a balanced half-cell equation for the reaction occurring at the anode. ignore phases in the reaction.
r-ruslan [8.4K]

The balanced half-cell equation for the reaction occurring at the anode is  H2 ---> 2H(+) + 2e(-)

E<u>xplanation:</u>

  • The balanced half-cell equation taking place at the anode is explained below
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