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3 years ago

Which formula represents a hydrocarbon

Chemistry

2 answers:

Nata [24]3 years ago

8 0

The formula for hydrocarbon is CnH(2n+2).

DiKsa [7]3 years ago

5 0

This question is incomplete. Here is the complete question:

Which formula represents a hydrocarbon?

(1) CH3I

(2) CH3NH2

(3) CH3CH3

(4) CH3OH

Answer:

The correct answer is option (3) CH3CH3 .

Explanation:

Hydrocarbon is an organic compound and as we can see in its formula, it is composed of hydrogen (H) and carbon (C).

Each carbon has 4 electrons, it is for this reason that it will have to make four bonds for the union to be stable, and since these bonds in carbon are generated in an easy and strong way, this will allow thousands of types to be generated of hydrocarbons.

There are different chains that these atoms can form:

Linear / Branched
Open / Closed

In turn, hydrocarbons can be classified as aliphatic or aromatic.

Given this information we can say that the correct answer is option C.

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Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water

Varvara68 [4.7K]

Answer:

$P_{H_2}=727mmHg$

Explanation:

Hello there!

In this case, according to the given data, it is possible to infer that the gas mixture lies on the 15.0 cm-high column of water, so that the total pressure or atmospheric pressure is given by:

$P_{atm}=P_{water}+P_{H_2}$

Thus, since the atmospheric pressure is 745 mmHg and the vapor pressure of water is 18 mmHg, the pressure of hydrogen turns out to be:

$P_{H_2}=P_{atm}-P_{water}\\\\P_{H_2}=745mmHg-18mmHg\\\\P_{H_2}=727mmHg$

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2 years ago

How are plate tectonics and the rock cycle connected

mote1985 [20]

Answer:

All igneous rocks the basis of the rock cycle are formed by plate tectonics. ... The heat from the mantle that fuels plate tectonics causes both igneous and sedimentary rocks to be turned into metamorphic rocks. The metamorphic rocks can be eroded into sedimentary rocks are remelted back into igneous.

Explanation:

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2 years ago

You have 500 mL of 5 M HCl already made. You need to dilute the solution to 1 M HCl. How much water will you need to add?

hram777 [196]

Answer:

You need to add 400mL of water

Explanation:

500mL = 5 M HCI That means that if you divide both sides by 5

100mL = 1 M HCI If you need ot get rid of 4 M HCI then you add 400 mL of water because that is what it is equal to

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3 years ago

1. A compound is found to contain

satela [25.4K]

Answer:

FeSO2

Explanation:

Please see attached picture for full solution.

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2 years ago

1.For the reaction P4 O10(s) + 6H2O(l) → 4H3PO4(aq), what mass of P

Alex17521 [72]

P₄O₁₀ + 6H₂O → 4H₃PO₄
The equation shows us that the molar ratio of
P₄O₁₀ : 6H₂O = 1:6

We also know that one mole of a substance contains 6.02 x 10²³ particles. We can use this to calculate the moles of water.
moles(H₂O) = (5.51 x 10²³) / (6.02 x 10²³)
= 0.92 mole
That means moles of P₄O₁₀ = 0.92 / 6
= 0.15

Each mole of P₄O₁₀ contains 4 moles of P.
moles(P) = 4 x 0.15 = 0.6 mol
Mr of P = 207 grams per mol
Mass of P = 207 x 0.6
= 124.2 grams

5 0

2 years ago

Read 2 more answers