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2 years ago

What is the difference between water and alcohol

Chemistry

1 answer:

Rudik [331]2 years ago

7 0

Answer:

water is H2O having different structure than alcohol R-OH which means they have different properties too.

Explanation:

In water one oxygen atom is covalently bound with two hydrogen atoms while alcohol is an organic compound having Oh group attached to the carbon chain.

Other than liquid water can occur in solid form that is ice and in gaseous form that is vapors too while alcohol only present in liquid form.

heat of evaporation of alcohol is lower than water means water need more heat to evaporate than alcohol that is why we can say alcohol having more cooling effect than water.

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If a 45.6 g piece of aluminum has a density of 2.1 g/mL, what volume would it have?

Mashcka [7]

Answer:

$\boxed {\tt 21.7142857 \ mL}$

Explanation:

The density formula is:

$d=\frac{m}{v}$

Rearrange this formula for v, volume. Multiply by v, then divide by d.

$d*v=\frac{m}{v}$

$d*v=m$

$\frac{d*v}{d} =\frac{m}{d}$

$v=\frac{m}{d}$

Volume can be found by dividing the mass by the density. The mass of the aluminum is 45.6 grams and the density is 2.1 grams per milliliter.

$v=\frac{45.6 \ g }{ 2.1 \ g/mL}$

Divide. Note the grams, or g, will cancel out.

$v=\frac{45.6 }{2.1 \ g}$

$v= 21.7142857 \ mL$

The volume of the aluminum is 21.7142857 milliliters.

3 0

3 years ago

Imagine you are a detective examining a crime scene. You are trying to

Sidana [21]

Answer:

C. pieces of hair found at the crime scene.

Explanation:

using the pieces of hair, you can get the DNA of the person. This will give u a better lead in solving the crime.

Hope it helps u ....

4 0

3 years ago

Read 2 more answers

Which of the following is not a type of structural isomerism? A. Functional group B. Optical C. Chain D. Positional

guapka [62]

Answer:

B. Optical

Explanation:

First, let's go through what isomerism is. Isomerism is the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism), as CH3OCH3 and CH3CH2OH, or in the arrangement of their atoms in space and therefore in one or more properties. There are 5 types of structural isomerism. They are chain isomerism, position isomerism, functional group isomerism, metamerism, and tautomerism. This would mean that these types of structural isomerism that are in the options would be eliminated as the question ask which of the "following" is not a type of structural isomerism. This would leave the only option available which is Option B. Optical Isomerism. So instead of being a structural isomerism, it is a type of stereoisomerism. Stereoisomerism is the arrangement of atoms in molecules whose connectivity remains the same but their arrangement in space is different in each isomer.

Therefore, the answer is Option B. Optical.

8 0

1 year ago

Which of the following is NOT a correct ordering of subshells in the periodic table?

Igoryamba

3d < 4s is NOT a correct ordering of subshells in the periodic table because 4s is at a lower energy level than 3d.

According to the Aufbau principle, The electron configuration of an element tells how electrons of that element are arranged in thier subshells from their lowest energy state before the highest energy state.

For example, before a 2s subshell can be occupied, A 1s subshell must be filled.

The orbitals are filled in this order:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s,

For example, Na (sodium) with 11 atomic number is written as 1s2 2s2 2p6 3s1

Therefore,

2p < 3s True

3d < 4p True

3d < 4s False

4s < 4p True

See more here: brainly.com/question/19221869

7 0

1 year ago

Do you think the authors use of the term airpocalypse is a fitting way to discribe the air pollution

choli [55]

Yes, and here's why (PS I'm getting technical here so listen carefully!):
You're definition for apocalypse is something that involves extreme damage or destruction, right? Well, that means air-pocalyspe would mean air that causes extreme damage or destruction, correct? Air pollution absolutely DESTROYS our air, so I believe this term is fitting for describing air pollution. I also think that this is a bit of an opinion question, so you can use this as a guide if you don't want to use this direct answer!

7 0

2 years ago