2 years ago

What is the difference between ethanol and methanol.

1 answer:

7 0

Methanol and ethanol are alcohol variants. Methanol contains only one carbon and ethanol contains two carbon in each molecule. Both substances can be used as energy sources, but methanol primarily serves as a research subject, and its use as a motor fuel has been mostly phased out in the United States.

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Which cohesive forces are the strongest in water?

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C.) hydrogen bonding interactions.

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3 years ago

Which statements accurately describe binary star systems? Check all that apply. have more than two stars have stars that are alw

Westkost [7]

Answer:

have stars that might appear to wobble

often have one star that is brighter than the other

Explanation:

A binary star system is a star system made up of mostly two stars that moves round their common fixed center.

The two orbiting stars are gravitationally bonded to one another and they move round each other.

Most binary stars might appear wobble. One of the stars often appears brighter than the other.

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3 years ago

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An unknown liquid is composed of 34.31% c, 5.28% h, and 60.41% i. The molecular weight is 210.06 amu. What is the molecular form

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In an unknown liquid, the percentage composition with respect to carbon, hydrogen and iodine is 34.31%, 5.28% and 60.41% respectively.

Let the mass of liquid be 100 g thus, mass of carbon, hydrogen and oxygen will be 34.31 g, 5.28 g and 60.41 g respectively.

To calculate molecular formula of compound, convert mass into number of moles as follows:

$n=\frac{m}{M}$

Molar mass of carbon, hydrogen and iodine is 12 g/mol, 1 g/mol and 126.90 g/mol.

Taking the ratio:

$C:H:I=n_{C}:n_{H}:n_{I}$

Putting the values,

$C:H:I=\frac{34.31 g}{12 g/mol}:\frac{5.28 g}{1 g/mol}:\frac{60.41 g}{126.90 g/mol}=6:11:1$

Thus, molecular formula of compound will be $C_{6}H_{11}I$ .

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3 years ago

Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AIX; where element X is a diatomi

lora16 [44]

Explanation:

I thought oxygen

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3 years ago

List the following elements in order from smallest atomic radii to largest:<br> Cr, Fe, Zn, Sc

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Sc(21), Cr(24), Fe(26), Zn(30)

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4 years ago