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gavmur [86]
3 years ago
9

A student is asked to seperate two liquids. Liquid A boils at 100°c and liquid B boils at 65°c. The student sets up a fractional

distillation experiment, and after a few minutes a clear liquid is collected from the condenser. Explain which of the two liquids will be collected first. ( 2 marks). ​
Chemistry
1 answer:
julsineya [31]3 years ago
3 0

Answer:

B

Explanation:

because B has a lower bp it needs less time and energy to turn into vapour and is collected into the condenser first

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scoundrel [369]

Explanation:

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Now we have our limestone which is CaCO3.

What happens is that the acid breaks apart our limestone into Ca2+ and CO3 2-. This then reforms into Calcium bicarbonate Ca(CO3)2.

Calcium bicarbonate is soluble in water and is hence washed away by the rain eroding the limestone.

5 0
3 years ago
An aluminum soft drink can is approximately 0.55 moles of aluminum. How many
Morgarella [4.7K]

Explanation:

Round 87.073 meters to 3 significant figures. write your answer in scientific notation. step 1: 87.073 rounds to step 2: write scientific notation : meters...

3 0
2 years ago
What type of mutation occurred?
kotykmax [81]

Answer:

  • Insertions are mutations in which extra base pairs are inserted into a new place in the DNA. Deletions are mutations in which a section of DNA is lost, or deleted..
  • Germline mutations occur in gametes. Somatic mutations occur in other body cells.
  • Chromosomal alterations are mutations that change chromosome structure.
  • Point mutations change a single nucleotide.
  • Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.
  • Deletion is a type of mutation involving the loss of genetic material. It can be small, involving a single missing DNA base pair, or large, involving a piece of a chromosome.
  • Base substitutions are the simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication. For example, during replication, a thymine nucleotide might be inserted in place of a guanine nucleotide.
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8 0
3 years ago
Psoriasis is a disease that causes a red rash on the skin. which body system does psoriasis affect?
damaskus [11]

Answer:

It is b

Explanation:

8 0
3 years ago
HELP HELP HELP !!!!!!!!!!!!!!
zhuklara [117]

Answer:

approximately 83.33

Explanation:

The formula for the area of a right square pyramid is:

V= a^2(h/3)

a= base edge

h= height

The height is 10 inches, and the base edge is 5 inches. Plug it in to the formula:

V= 5^2 (10/3)

V= 25 (10/3)

V= 83.33 in^3

5 0
2 years ago
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