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2 years ago

Which best describes this situation?

Chemistry

1 answer:

Scilla [17]2 years ago

4 0

I believe it is the first option, habitat destruction due to pollution, my apologies if it is incorrect.

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Which diagram shows a wave with the highest frequency? Chemistry question.

notsponge [240]

The correct answer is D

Explanation:

Wave frequency is mainly determined by the number of waves that pass through a specific point. In a diagram, this can be found by analyzing the number of crests (top of the wave) and the space between them. For example, wave B is the one with the lowest frequency because there is only one crest and this shows only one wave passing at a specific point. On the opposite, wave D is the one with the highest frequency because this shows multiple crests and this indicates the frequency is high or that many waves pass through a specific point in a short time.

8 0

3 years ago

Sugar C12 H22 011 can be classified as a element, heterogeneous mixure, solution, compound

Fantom [35]

Answer:

The answer is a compound.

it is a compound as it contains different elements

Explanation:

5 0

3 years ago

The formation of large molecules from small repeating units is known as what kind of reaction? Oxidation reduction condensation

natka813 [3]

Answer:

The formation of large molecules from small repeating units is known as Condensation reactions.

Explanation:

Those reactions in which two molecules join together with a elimination of small neutral molecule like H₂O, CH₃OH, HCl e.t.c are known as condensation reactions.

Polymerization reactions are those reactions in which small molecules called as monomers join together to form a large molecule also known as polymers. These reactions are done via different mechanisms among which one is the condensation reaction.

Example:

Proteins (polymer) are made up of amino acids (monomers) through condensation reaction as,

n H₂N-RH-COOH → H₂N-[-RH]n-COOH + n H₂O

In above equation "n" represent large number, H₂N-RH-COOH represent amino acid (monomer) and H₂N-[-RH]n-COOH represent protein (polymer). While, the H₂O eliminated is the small neutral molecule.

7 0

3 years ago

Why does a split petrol forms a slick on top of water

slavikrds [6]

Because it's oil and oil always sits on top of water

4 0

4 years ago

Compound A (C9H12) shows prominent peaks in its mass spectrum at m/z 120 and 91. Compound B (also C9H12) shows prominent peaks a

vodka [1.7K]

Answer:

Compound A: Propylbenzene

Compound B: Cumene

Explanation:

On this case, we have two clues:

1) The mass spectrometry info

2) The formation of benzoic acid

If we have the formation of benzoic acid with a strong oxidant ( $H_2CrO_4$ ). It means that we have an alky group bonded to benzene. Therefore we have to add three carbons to a benzene ring in order to obtain the mass of the compound (120).

The next question is how these three additional carbons are bonded to the benzene. For this, we have to check the mass info. For compound A we have a fragmentation moeity on 91 therefore we have a loss of an ethyl group. Therefore compound A have a linear structure for the aditional three carbons.

For compound B we have a fragmentation moeity on 105 this means a loss of 15 units of mass therefore we loss a methyl group. This indicates that we have a non linear structure fo the three additional carbons.

See figures 1 and 2.

I hope it helps!

7 0

4 years ago