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bezimeni [28]
3 years ago
15

Explain why some metals are extracted by heating their oxides with carbon, but some metals cannot be extracted in this way

Chemistry
1 answer:
Oxana [17]3 years ago
8 0

Answer:

This happens because a metal is less reactive than carbon and it can be extracted from its oxides by heating with carbon. The carbon displaces metal from the compound and removes the oxygen from the oxide.

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Indicate how you might prepare acetic acid from ethene
ruslelena [56]
Acetic acid can be prepared from ethane by oxidizing it. Acetic acid is generally a carboxylic acid. These acids can be made by the oxidation of alcohols using potassium dichromate(VI) solution with sulfuric acid. Ethane is made into acetic acid in two steps. First it is formed into an aldehyde and then to acetic acid.
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The introduction of synthetic fertilizers and chemical pesticides to farming date back to the __________
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Answer:

Humans started to use pesticides dating back to before 2000 BC.

Hope this helps ^-^

Explanation:

4 0
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I need help ASAP!!! What type of chemical bond holds Lit and F together in LiF?
Bond [772]

Answer:

The correct answer is a) lonic Bond

Explanation:

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What makes isotopes unstable?
Dennis_Churaev [7]

Answer:

Explanation:

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3 years ago
Read 2 more answers
It is the balance between thermal energy and intermolecular forces that determines the state of matter of any substance at room
ExtremeBDS [4]

Answer:

The correct option is;

2) Thermal energy increases by a factor of R

Explanation:

The equipartition energy theorem states that when molecules are in a state of thermal equilibrium, particles within the system posses equal average energy with each degree of freedom which can be known as energy due to a state of having a particular temperature or thermal energy given by the relation

E_{th} = Kinetic energy of translation + Kinetic energy of rotation + Energy of vibration

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For a solid element, E_{th} = 3·n·R·T

Therefore, as the temperature is doubled, the thermal energy increases by a factor of R.

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