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Tems11 [23]
3 years ago
6

How many different elements are in nine substances

Chemistry
1 answer:
Veronika [31]3 years ago
3 0
You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.
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LenKa [72]

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yes

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Can sugar and water be separated using distillation?
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A solid precipitates from a solution, absorbing heat as it does so. a. Yes b. No c. Can't decide with information given.
inn [45]

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c. Can't decide with information given.

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The chemical and physical processes can be classified as endothermic or exothermic. The first one happens when the system absorbs heat, so the temperature of the surroundings will decrease, and the other one happens when the system releases heat, then the temperature of the surrounds will increase.

Precipitation is the formation of a solid in a solution. The process can happen with absorption or release of heat, it depends on the substance. So, with the information given it's impossible to say it.

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The atoms of which elements are least likely to form chemical bonds? Check all that apply.
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