A hydrocarbon molecule is considered to be saturated when the molecule contains

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Answer 1

Answer:

The best phrase to complete the sentence is "single bonds". A hydrocarbon molecule is considered to be saturated when the molecule contains single bonds. Alkanes are a saturated type of hydrocarbon. They only consists of hydrogen and carbon atoms in single bonds. The general formula is CnH2n+2. C4H10 is the molecular formula for butane. It is an example of a saturated hydrocarbon.

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Rank the following structures in order of decreasing electrophilic strength.

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Electrophiles are positively charged or neutral species having empty orbitals that are attracted to an electron rich center. Examples of these are the Bronsted acid. Bronsted acid accepts an electron pair for hydrogen.

How many atoms are there in 1.3 x 10^22 molecules of N(O)2

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1 molucule of NO₂, have 1 atom of N, and 2 atoms of O, therefore, 1 molecule of NO₂ have 3 atoms.

1 molecule of NO₂--------------------3 atoms
1.3 * 10²² molecules----------------- x

x=(1.3 * 10²² molecules * 3 atoms) / 1 molecule of NO₂=3.9 * 10²² atoms.

Answer: in 1.3 * 10²² molecules of NO₂ there are 3.9 * 10²² atoms.

Classical biotechnology dates back about _____ years ago. A.100
B.1,000
C.10,000
D.100,000

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The correct answer should be C. 10,000. Although it sounds like something futuristic, it's existed almost as long as civilzied humans because it was present in the form of selective breeding of animals and plants during the early eras of agriculture and settling in river valleys. Nowadays it's more complex and more things can be achieved.

A compound is formed when 171.2 g of carbon reacts with 28.8 g of hydrogen. What is the mass percent of hydrogen in the compound

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Following the law of conservation of mass, the mass percent of hydrogen in the resulting compound is 14.4%(wt/wt). This is assuming that all of the carbon reacts with all of the hydrogen. The solution is as follows:

mass % = mass hydrogen*100/total mass = 28.8*100/(28.8+171.2) = 14.4%

Answer:

For Edmentum/Plato users, the correct answer is A. 14.4%

Petroleum can be separated by distillation because the hydrocarbons in petroleum area) elements with identical boiling points
b) elements with different boiling points
c) compounds with identical boiling points
d) compounds with different boiling point

Answers

Answer:

Option-D (Compounds with different boiling point)

Explanation:

Compound is defined as a molecule which is made up of two or more different elements. All compounds are molecules but all molecules are not compounds, for example N₂, O₂, S₈, H₂, F₂ etc are molecules but they are not compounds.

Petroleum is a crude mixture of variety of hydrocarbons containing carbon and hydrogen as a primary elements along with other hetero elements like nitrogen, oxygen and sulfur etc. Therefore, these hydrocarbons can be termed as compounds because they are made up of atleast two essential elements like hydrogen and carbon.

Secondly, the process of distillation works on the basis of difference in boiling points of the compounds present in Petroleum. Therefore, compounds with lower boiling point will evaporate first and will separate first from the mixture and vice versa.

Compounds with different boiling points - b.

Only because fractional distillationworks by having a temperature gradient in the column therefore different length hydrocarbons condence at different rays of different temperatures.This works because longer chain hydrocarbons have higher boiling points.

The factor that affects how easily an electron can be removed from an atom is the.

Answers

Atomic radius aka distance from the nucleus to the outermost energy level. The greater this distance, the less electrostatic attraction between these oppositely charged particles.

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