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tatiyna
3 years ago
14

Describe a way to separate iron filings from sand.

Chemistry
2 answers:
nikklg [1K]3 years ago
8 0
Use a magnet to separate the iron from the sand.
Alexxandr [17]3 years ago
4 0
Spread out the iron fillings
then since iron is magnetic use a magnet to extract the iron fillings from the sand. if you want to separate the salt from the sand you add water to the sand mix it for a while and the salt will dissolve <span />
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What are some examples of how electrolysis is used in scientific research ?
charle [14.2K]

Answer:

Explanation: Perhaps the most familiar example of electrolysis is the decomposition (breakdown) of water into hydrogen and oxygen by means of an electric current. The same process can be used to decompose compounds other than water. Sodium, chlorine, magnesium, and aluminum are four elements produced commercially by electrolysis.

6 0
2 years ago
When two molecules of methanol (CH3OH) react with oxygen, they combine with three O2 molecules to form two CO2 molecules and fou
Alex17521 [72]

Answer:

188

Explanation:

For every 2 molecules of methanol reacted, 4 molecules of water are formed.  Use this relationship to solve.

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3 0
3 years ago
What new information can you add to your definition of chemical change?
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5 0
3 years ago
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11111nata11111 [884]

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3. 116.5 V

4. 119.6 V

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4. Determination of the voltage.

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4 0
2 years ago
Which will have the MOST kinetic energy?
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should be B

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