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EleoNora [17]
3 years ago
13

Which lewis structures represent a molecule that would assume a linear geometry? check all that apply.

Chemistry
2 answers:
Daniel [21]3 years ago
7 0
CO2, C2H2, BeF2, XeF2, etc all these molecules have linear geometry.
Alinara [238K]3 years ago
7 0

Explanation:

There are a few examples of different type of molecules that have a linear geometry:

1) Diatomic molecules

Diatomic molecules always have a linear geomerty given that its their only possiblility.

Some examples are: Oxygen (O2), Nitrogen (N2), Fluorine (F2), Choridic acid (HCl).

2) Triatomic molecules with no lone pair electrons

In this case, the absence of lone pair electrons keeps a linear geometry in molecules such a carbon dioxide (CO2).

If the molecule would have this electrons the repulsion generated between them and the electrons from the atomic bonds would create an angular geometry.

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A 0.271g sample of an unknown vapor occupies 294ml at 140C and 874mmHg. The emperical formula of the compound is CH2. How many m
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Using PV = nRT, we can calculate the moles of the sample.
874 mmHg = 116,524 Pa
n = PV/RT
n = 116,524 x 294 x 10⁻⁶ / 8.314 x (140 + 273)
n = 9.98 x 10⁻³ mol

moles = mass / Mr
Mr = 0.271/9.98 x 10⁻³
Mr = 27.2
Mass of empirical formula = 14
Repeat units = 27.2 / 14 ≈ 2

Formula of substance:
C₂H₄

Combustion equation:
C₂H₄ + 3O₂ → 2CO₂ + 2H₂O

1 mole produces 2 moles of CO₂, so 3 moles will produce 6 moles CO₂
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How many grams of C3H8 are in a 7 L tank at 293 K and 5.45 atm?
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Rudik [331]

Answer:

Exergonic ,Endergonic,low concentration area,high

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In exergonic reaction,certain molecules are broken down;in the process they release energy which is captured when high energy molecules(such as ATP and NADH) are formed.

                          The breakdown of these molecules can be coupled to thermodynamically unfavorable processes such as Endergonic reactions or pumping og hydrogen ion from low concentration areas to high concentration areas.

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Draw it draw lewis dot structures for each hypothetical molecule shown below, using the correct number of valence electrons for
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The first molecule is a sensible molecule having complete octet of each atom such as C, H and O whereas the second molecule having hydrogen present between the aldehyde and methyl group and thus showing hydrogen is making bond with aldehyde and methyl as well which is not possible because hydrogen only having one electron in its octet due to which it can only form a single bond by sharing its valence electron.

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When atoms react they form a chemical bond which is defined as?
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A force of attraction that holds atom together
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