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Sloan [31]
3 years ago
12

Question 2

Chemistry
1 answer:
SVETLANKA909090 [29]3 years ago
3 0

D- Physical

Explanation:

A physical property is anything that has characteristics associated with a change in it's chemical composition

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The shielding of electrons gives rise to an effective nuclear charge, Zeff, which explains why boron is larger than oxygen. Esti
Paul [167]

Answer:

Option B. +3 and +6

Explanation:

<em>Zeff</em> = <em>z - s</em>

where <em>z</em> is the atomic number, <em>s</em> is the number of shielding(non-valence) electrons

For Boron, electronic configuration is 1s²2s³.

z = 5, s = 2

Zeff = 5 - 2 = +3

For Oxygen, electronic configuration is 1s²2s²2p⁴

z = 8, s = 2

Zeff = 8 - 2 = +6

3 0
3 years ago
Who has the greater boiling point C2H6or C2H50H
hichkok12 [17]

Answer:

C2H5OH has a greater boiling point.

Explanation:

It is a bigger molecule than C2H6.

7 0
3 years ago
Which of the following latitudes receive the most direct solar energy?
Misha Larkins [42]

Answer:

The answer to your question is D.

Explanation:

The latitudes near the equator receives the most direct solar energy.

Hope this helps :)

8 0
3 years ago
true or false electrical energy is the amount of energy that contains an object due to the kinetic energy?​
yuradex [85]

The answer to this question would be true.

4 0
2 years ago
Atomic radius increases as you move down a group of elements.
raketka [301]
Yes, the atomic radius increases as you move down a group of elements.  this is true
going down leads to valence electrons that are further away from nucleus -> less electrostatic attraction -> less pull towards nuc. -> greater radius/volume taken
3 0
3 years ago
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