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SSSSS [86.1K]
3 years ago
10

6th grade science I mark as brainliest zoom in if needed

Chemistry
1 answer:
RideAnS [48]3 years ago
5 0
A is the correct answer m


Tell me if I’m right or wrong

Thank you and yeah that’s it please inform me djdjdendrd
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A compound that contains only carbon, hydrogen and oxygen has the following
Mariulka [41]

C6H8O6 i think so might be (C)

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Which gas sample at STP has the same number
Flauer [41]

<span>STP signifies standard temperature and pressure. This conditions are at 1 atmospheric pressure and 0 degrees Celsius. It has been said that at these conditions, one mole of a gas molecule is equivalent to 22.4 liters of volume. Therefore, the correct answer is the second option which is 2 L of CH4.</span>

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Phenol red is a ph indicator routinely used to monitor the ph of solutions in laboratories. It is reddish-orange in neutral solu
Mars2501 [29]

The answer is yellow .

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5 0
3 years ago
Arrange the following alkyl halides in order from most reactive to least reactive in an SN1 reaction: 2-bromo-2-methylpentane, 2
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Answer:

2-iodo-2-methylpentane > 2-bromo-2-methylpentane > 2-chloro-2-metylpentane > 3-chloropentane.

Explanation:

At a substitution reaction by SN1, the alkyl halide must lose its halide, and then an intermediary will be formed: a carbonium, which is an alkyl group with a positive charge in the carbon. The halide lost will be formed the halide ion, which is also an intermediary of the reaction.

The reactivity depends on the stability of the intermediaries (first of the carbonium, and second of the halide ion). As more bonded with carbons is the carbonium, more stable it is. The order of stability of the halides ions is from their electronegativity: as lower is it, as stable is the ion. The order is then: I⁻ > Br⁻ > Cl⁻ > F⁻.

2-bromo-2-methylpentane, 2-chloro-2-metylpentane, and 2-iodo-2-methylpentane, will form a 3-degree intermediary, so they will be more reactive than 3-chloropentane, which form a 2-degree intermediary. So, for the order of the stability of the halide ions, the order of reactivity is:

2-iodo-2-methylpentane > 2-bromo-2-methylpentane > 2-chloro-2-metylpentane > 3-chloropentane.

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3 years ago
Which type of absolute dating method would be best for a rock layer believed to be millions of years old?
nekit [7.7K]
I think D, Isotope 51
7 0
3 years ago
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