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levacccp [35]
3 years ago
12

Rank these hydrocarbons in order from predicted highest boiling point to lowest boiling point: Rank from highest boiling point t

o lowest boiling point. To rank items as equivalent, overlap them.
A. CH3CH3
B. CH3CH2CH3
C. CH3CH2CH2CH3
D. CH3CH(CH3)2
Chemistry
2 answers:
dexar [7]3 years ago
4 0

Answer: Arrangements of the hydrocarbon from the highest boiling point to the lowest is shown below

C--> D--> B--> A

Explanation:

Hydrocarbons are compounds which contains carbon and hydrogen only. The options given are all saturated because all the four bonds of the carbon are single bonds. The bonds could be a carbon- hydrogen bond or a carbon- carbon bond.

The boiling point of Hydrocarbons can be affected by the following factors:

--> Number of carbon atoms

--> molecular weight

Boiling point depends on the length of the carbon chain, it increases as number of carbon increase. That is the main reason why butane (option C) has the highest boiling point than the rest of the hydrocarbons with ethane( option A) being the one with lowest boiling point.

Increase in molecular weight Increases the boiling point of hydrocarbons. That is the reason why 2-methylpropane (option D) has a higher boiling point than propane( option B) because it has higher molecular weight.

kolezko [41]3 years ago
4 0

Answer:

1-D

2-B

3-C

4-A

Explanation:

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Maksim231197 [3]
Carbon has the highest first ionization energy because it is the topmost atom on the periodic table
6 0
3 years ago
Carbon dioxide in the atmosphere dissolves in raindrops to produce carbonic acid (H2CO3), causing the pH of clean, unpolluted ra
anastassius [24]

Answer:

The range of [H⁺] is from 2.51 x 10⁻⁶ M to 6.31 x 10⁻⁶ M,

Explanation:

To answer this problem we need to keep in mind the <u>definition of pH</u>:

  • pH = -log [H⁺]

So now we <u>calculate [H⁺] using a pH value of 5.2 and of 5.6</u>:

  • 5.2 = -log [H⁺]

-5.2 = log [H⁺]

10^{-5.2} = [H⁺]

6.31 x 10⁻⁶ M = [H⁺]

  • 5.6 = -log [H⁺]

-5.6 = log [H⁺]

10^{-5.6} = [H⁺]

2.51 x 10⁻⁶ M = [H⁺]

6 0
3 years ago
PLLLLLLLZ HELP IS NEEDED ASAP I WOULD REALLY APPRECIATE IT
Lesechka [4]

Answer:

1)Reactants

2)Light

3)An item that can increase reaction rates

4)Reactants must collide with each other

Less molecules lower the chance for collisions

The more collisions there are the higher the reaction rate

5 0
3 years ago
Which of the following properly describes the movement of atoms as they represent the states of matter? Atoms making liquids hav
7nadin3 [17]

Answer:

Atoms making liquids have less attraction than solids, but more than gases

Explanation:

The attraction between atoms in different molecules in a solid is very strong due to strong intermolecular forces present in a solid. However, such intermolecular forces are weaker in liquids than in solids.

This implies that the solid has higher intermolecular forces of attraction compared to gases and liquids. Based on the negligible degree of intermolecular forces between them, a gas has the weakest intermolecular forces hence the atom has very minimal interaction between them.

7 0
3 years ago
Problem 4
Hunter-Best [27]
<h3>Answer:</h3>

1.93 g

<h3>Explanation:</h3>

<u>We are given;</u>

The chemical equation;

2C₂H₆(g) + 7O₂(g) → 4CO₂(g) + 6H₂O(l) ΔH = -3120 kJ​

We are required to calculate the mass of ethane that would produce 100 kJ of heat.

  • From the equation given;
  • 2 moles of ethane burns to produce 3120 Kilo joules of heat
  • Therefore;

Number of moles that will produce 100 kJ will be;

= (2 × 100 kJ) ÷ 3120 kJ)

= 0.0641 moles

  • But, molar mass of ethane is 30.07 g/mol

Therefore;

Mass of ethane = 0.0641 moles × 30.07 g/mol

                          = 1.927 g

                          = 1.93 g

Thus, the mass of ethane that would produce 100 kJ of heat is 1.93 g

3 0
3 years ago
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