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Nata [24]
3 years ago
13

Why are scientific models important in the study of science?

Chemistry
1 answer:
DochEvi [55]3 years ago
3 0
They help scientists understand complex ideas and objects that aren’t easy to handle.
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The hydrogen atom is not actually electronegative enough to form bonds to xenon. were the xenon-hydrogen bond to exist, what wou
Marat540 [252]

Answer : The structure of XeH_4 will be square-planar.

Explanation :

In the given molecule XeH_4, 'Xe' is the central atom and 'H' is the terminal atom.

Xenon has 8 valence electrons and hydrogen has 1 valence electron. Therefore, the total number of valence electrons are 8 + 4(1) = 12 electrons.

The number of electrons used in Xe-H bonding = 8 electrons

The remaining electrons which are used as lone pair on central atom (Xe) = 12 - 8 = 4 electrons

There are 4 bonding pairs and 2 lone pairs of electrons, they will be arranged in the octahedral arrangement around the central atom with 2 lone pairs of electrons on central atom. The lone pairs are arranged linearly across the central atom. The resulting structure will be square-planar.

The structure of XeH_4 is shown below.

5 0
3 years ago
Which of the following is NOT a variable property for a gas?
Alex_Xolod [135]
Mass, air has that. Since what fills up a balloon? A gas
Shape, it has no definite shape. This one is accurate, it has no definite shape, it takes the shape of the object it's in.
Volume, does air take up space? If it does then yep. Balloon example/
Density, yes it does, because it's tightly wounded up.

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5 0
4 years ago
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Which arrow represents the activation energy for the forward reaction
ValentinkaMS [17]

Answer:

B

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4 0
2 years ago
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Which of the following is considered a greenhouse gas?
Sergeeva-Olga [200]
The primary greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. So, the correct answer among these options is water vapor, that is considered to be a greenhouse gas.
4 0
3 years ago
A student drops some metal paper clips in a box of sand. The student uses a magnet to separate the metal paper clips from the sa
Dmitriy789 [7]

Answer:

compound

Explanation:

because now there are one together

3 0
3 years ago
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