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aleksandrvk [35]
3 years ago
13

Which clue can be used to identify a chemical reaction as a combustion reaction

Chemistry
2 answers:
melisa1 [442]3 years ago
5 0
i think it’s B. a hydrocarbon reacts with oxygen
if i’m correct, a combustion reaction is anything that’ll give a reaction
kogti [31]3 years ago
5 0

Answer:

A hydrocarbon reacts with oxygen

Explanation:

The other options are incorrect because:

  • oxygen is a reactant
  • water and carbon dioxide are products
  • the reaction doesn't involve ions

Other characteristics of combustion are the presence of: a flame, heat, ashes and smoke.

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By mistake, you added salt instead of sugar to the<br> oil. How can you remove the salt?
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Explanation:

To remove the salt from the oil, I will add water to dissolve the salt from it.

Oil is an organic molecule that is non-polar

Salt is polar ionic compound

Salt will not dissolve in the oil.

  • Take the mixture.
  • Add water to it.
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4 years ago
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nadya68 [22]

Answer:

warm, dry downslope wind affecting Southern California - Santa Ana wind

a seasonally changing wind- monsoon

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Explanation:

The Santa Ana wind occurs in early autumn. They bring hot and dry weather to areas around the South-West coast. They move at high speeds, affecting most parts of Southern California.

Monsoon is a seasonal wind that blows across Southern Asia. It usually blows in summer. It is a a seasonally changing wind.

Valley breeze is an example of convection current in nature. It is produced by rapid warming of the valley floor leading to the expansion of air making it to flow up the slopes. At night, radiation from the surface cools the slopes. This leads to the rise of cooler and denser air which drains into the valley.

Haboob is generated by cold thunderstorm downdrafts. It is associated with large sandstorms and dust storms.

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