Why does methane have a low boiling pint?

Answers

Answer 1

Answer: Methane is an alkane. Alkanes are composed of a number of carbons (denoted by the prefix on the chemical name, e.g. meth-ane, eth-ane, prop-ane, but-ane...) which are saturated with hydrogen atoms (the largest number of hydrogens possible are bound to them). Methane has one carbon, which is saturated with 4 hydrogen atoms - this means that the chemical formula is CH4 (where the 4 should be subscript, but I can't work it out in this text field).

The boiling point depends on the strength of the intermolecular forces between each molecule - as the length of the molecule increases, so does the force of attraction between them because there are more points to attract together. Methane has a very short chain length of only 1 carbon, so the intermolecular forces are very weak. Because the forces are weak, very little energy is required to overcome them to allow the substance to become gaseous (gas molecules spread out to fill any space, requiring a negligible strength of intermolecular forces).

Consequently the boiling point of methane is so low that it is found in gaseous form almost all of the time on Earth - however Titan, one of the moons of Saturn, has seas of methane on its surface, because it is so cold there that it is possible for methane gas to condense into liquid.

Answer 2

Answer: In order to consider the boiling point of a substance, we need to think about the forces holding the molecules together. Because methane (CH4) is a non-polar molecule the molecules are held together only by London Dispersion Forces which are very weak and easy to break. These bonds break when methane boils and because they are weak, it boils at a low temperature.

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Look around you to find an object in motion .describe the objects motion by discussing its position and direction of motion in relation to a refrences point . explain how you could determine the objects speed.

Answers

A bike. In the middle of the street, it is moving north when looking from the light pole's view. I can determine the object's speed by looking at the speedometer I see on the sidewalk that shows how fast a vehicle on the road is going.

What might happen to an organism if its habitat could not meet one of its needs?

Answers

The organism could adapt over time and find another way to satisfy this need, it could move to a new location, or the organism could eventually die off.

What is an ionic bond?

Answers

Ionic bond is formed when there is a transfer of electron(s) from metallic atom to non-metallic atom.

The correct answer to the question is Option B. A bond resulting from the transfer of 1 or more electrons

Ionic bond exist between a metal and a nonmetal.

In this bonding, the metal losses it's valence electron to form a stable metallic ion, while the nonmetal receives the electron from the metal to form a stable nonmetallic ion which results in the formation of an ionic compound.

With the above information, we can see that ionic bond involves a transfer of electron(s).

Thus, the correct answer to the question is Option B. A bond resulting from the transfer of 1 or more electrons.

See attachment image

Lean more: brainly.com/question/11527546

Answer: B

Explanation:

Ionic bonding is the complete transfer of electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

If 842 grams of sodium hydroxide reacts with 750.0 grams of aluminum, how many grams of aluminum hydroxide should theoretically form?

Answers

548.55 grams of aluminum hydroxide should theoretically form.

Explanation:

Balanced equation for the reaction:

3 NaOH + Al ⇒ Al(OH)3 +3 Na

DATA GIVEN:

mass of NaOH = 842 grams, atomic mass =39.9 grams/mole

mass of Al = 750 grams, atomic mass = 26.9 grams/mole

aluminum hydroxide theoretical yield = ?

Moles of NaOH reacted

number of moles = $(mass)/(atomic mass of 1 mole)$

putting the values in the equation

NaOH = $(842)/(39.9)$

= 21.1 MOLES OF NaOH

Al = $(750)/(26.9)$

= 27.8 moles

from the equation

from 3 moles of NaOH 1 mole of Al(OH)3 is produced

21.1 moles of NaOH will react to give x moles of Al(OH)3

$(1)/(3)$ = $(x)/(21.1)$

7.03 moles of Al(OH)3 is formed.

and

1 mole of Al(OH)3 is formed from 1 mole of Al in the reaction

so, 27.8 Moles will react to give give 27.8 moles of Al(OH)3 limiting reagent of the given reaction is NaOH

mass of Al(OH)3 =7.03 x 78 (atomic mass of Al(OH)3)

= 548.55 grams

theoretical yield from the given data is 548.55 grams

Which type of fermentation occurs in yeast?

Answers

fermentation occur in yeast is alcoholic.

Which two cellular structures help cells move around?A.
nuclei and cell walls

B.
chloroplasts and endomembrane systems

C.
cilia and flagella

D.
ribosomes and mitochondria

Answers

It is nuclei and cell walls. Hope this helps!

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