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eimsori [14]
3 years ago
14

Why is Boron different from Neon

Chemistry
1 answer:
AysviL [449]3 years ago
5 0
It is different because they are completely different elements with completely different properties. Boron is a Metalloid whereas Neon is an Inert Gas
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A solution is made by mixing 55.g of thiophene C4H4S and 65.g of acetyl bromide CH3COBr.
EleoNora [17]

Answer:

Mole fraction of C₄H₄S = 0.55

Explanation:

Mole fraction is moles of solute / Total moles

Total moles are the sum of moles of solute + moles of solvent.

Let's find out the moles of our solute and our solvent.

Mass of solute: 55g

Mass of solvent: 65g

Mol = Mass / molar mass

55 g / 84.06 g/mol = 0.654 moles of C₄H₄S

65 g /123 g/mol = 0.529 moles of C₂H₃BrO

Total moles = 0.654 + 0.529 = 1.183 moles

Mole fraction of thiophene = Moles of tiophene / Total moles

0.654 / 1.183 = 0.55

4 0
3 years ago
Perform the following calculations to the correct number of significant figures.
SSSSS [86.1K]
Answer: 460.624

Explanation:
1. Multiply the numbers
(24.5260 x 2.56) + 397.84
= (62.784) + 397.84

2. Add the numbers
(62.784) + 397.84
= 460.624
4 0
2 years ago
294 g of potassium dichromate contains 52 g of chromium and 39 g of potassium. What is the mass percent of oxygen in the compoun
IgorLugansk [536]
69.047% is the answer to this question
3 0
3 years ago
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Sindrei [870]
The answer is both B and C

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and pentan-3-ol can be oxidized to become pentan-3-one

hence both B and C will show positive chromic acid test

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3 0
2 years ago
Will mark as brainiest <br> Please help
Levart [38]

Answer:

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  6. copper phosphate
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(Correct me if I am wrong)

4 0
3 years ago
Read 2 more answers
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