Answer:
Explanation:
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In this case, since this imaginary gas can be modelled as an ideal gas, we can write:
Which can be written in terms of density and molar mass as shown below:
Thus, by computing the pressure in atmospheres, the resulting density would be:
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I believe the correct answer from the choices listed above is option D. The modern atomic model is sometimes called the electron cloud or quantum mechanics model. It <span>uses complex shapes of orbitals (sometimes called electron clouds), volumes of space in which there is likely to be an electron. </span>
Hope this answers the question. Have a nice day.
When changing states, only the intermolecular forces are considered, which, in water's case are hydrogen bonds. In order to go from solid to liquid to gas, the hydrogen bonds between the water molecules must be weakened to a certain degree that allows the molecules to spread further apart in liquids, and must be broken altogether to separate the molecules in order to turn it into gas.
Therefore, the answer is d.
The reason it is not the covalent bonds within molecules (despite the fact that it will turn water into a gas, it’s not water vapour, but hydrogen and oxygen gas) is that when bonds within a molecule are broken, this is called decomposition and it is a CHEMICAL change. Changing states is only a PHYSICAL change.
It is not ionic because water has covalent bonds.
Hydrogen bonds can only occur BETWEEN molecules (intermolecular forces).
Covalent bonds can only occur WITHIN molecules (intramolecular).
Answer:
crude oil
Explanation:
<em>The substance X would be crude oil.</em>
<u>Crude oil is a non-renewable natural resource that is black and thick in appearance. It is a mixture of several products and these are often separated by a process known as fractional distillation. </u>
Some of the products from the fractional distillation of crude oil include the premium motor spirit (petrol), automotive gas oil (diesel), kerosene, etc., and derivatives for the production of dyes, paints, perfumes, etc.
<u>Distance traveled N/S:</u>
(80 m north) + (20 m south) + (60 m south)
(80 m) + (-20 m) + (-60 m)
<u><em>0 m north/south</em></u>
<u>Distance traveled E/W:</u>
(15 m east) + (35 m west)
(15 m) + (-35 m)
-20 m
<u><em>20 m west</em></u>
<u>Resultant distance:</u>
a² + b² = c²
a = 0 m north/south
b = 20 m west
c² = (0 m)² + (20 m)²
c² = (20 m)²
<u><em>c = 20 m</em></u>
<u><em>Overall displacement = 20 m</em></u>