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FromTheMoon [43]
4 years ago
8

Mendeleev arranged the elements by what physical property?

Chemistry
2 answers:
iVinArrow [24]4 years ago
4 0

The answer is D. Atomic mass.

Alja [10]4 years ago
3 0
D.) He arranged elements by Atomic Masses
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Alkenes can be hydrated via the addition of borane to yield alcohols with non-Markovnikov regiochemistry.
galina1969 [7]

Answer:

The given statement is true.

Explanation:

Initially, the addition of borane to the alkene takes place in the form of a concerted reaction owing to the dissociation of the bond and subsequent formation, which occurs at a similar time. After that the Anti Markovnikov supplementation of boron takes place. The addition of this atom takes place with the less substituted carbon of the alkene that then substitutes the molecule of hydrogen on the more substituted carbon.

Then through the donation of a pair of electrons from the hydrogen peroxide ion, the process of oxidation takes place resulting in the formation of trialkylborane. After this realignment of an R group with its pair of bonding, electrons take place with adjacent oxygen resulting in the withdrawal of a hydroxide ion. Eventually, the trialkylborate reacts with the aqueous NaOH to generate alcohol and sodium borate as the side product.

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3 years ago
A chemist is looking at an electrically neutral atom that has three valence electrons. If she knows the element is a metalloid,
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Your answer is boron,

I looked at the periodic table, there is nothing else that falls under this specs.


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weqwewe [10]

The low temperature outside lowers the volume of the gas according to Charles' law because this law describes how a gas will behave at constant pressure. It shows that the volume of a given mass of a gas is directly proportional to the absolute temperature provided the pressure remains constant. An increase in temperature leads to an increase in volume while a decrease reduces the volume. This is due to the reduction in the distances traveled by the vibrating  particles of the gas because of the lost kinetic energy.

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Which of the following is a cause of eutrophication of a lake?
cluponka [151]

Answer:

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.....................................

4 0
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If you add them up: 2+2+6 = 10, you will know it's Neon, which is written as Ne
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