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Natali5045456 [20]
3 years ago
14

Can someone please help me with this Chem lab?

Chemistry
1 answer:
Jlenok [28]3 years ago
4 0

Answer:

sooo   dificult

Explanation:

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Calcium chloride is <u>deliquescent.</u> If exposed to air, it will absorb sufficient water from the air to allow it to dissolve. After a short while, instead of a white lump, you will have a pool of clear liquid.

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Uracil

Explanation:

The base that will NOT combine with 2-deoxyribose to form a nucleic acid is Uracil.

2-deoxyribose is a pentose sugar found in the DNA (Deoxyribonucleic acid). It is devoid of oxygen in its 2' position. The bases found in DNA are Adenine, Guanine, Cytosine and Thymine. Adenine, Guanine, and Cytosine are also found in RNA (Ribonucleic acid). Thymine is not present in RNA, it is only found in DNA. The base found in RNA is Uracil which in turn is not present in DNA. The five carbon sugar present in RNA is ribose which combines with Uracil.

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A solid being crushed into a powder is a physical change because a chemical change is when substances combine to create new substances.

Hope this helps :)

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