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1 year ago

Mixtures can be separated by chemical/physical change.

1 answer:

4 0

They can be separated by both means as they are only mixtures. (Two or more substances mixed together, and can be separated.)

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Acetonitrile (CH3CN) is an important industrial chemical. Among other things, it is used to make plastic moldings, which have mu

serg [7]

Answer:

One carbon atom and the nitrogen atom have nonzero formal charges.

Explanation:

The compound Acetonitrile has sixteen valence electrons as is easily San from its structure. It contains a carbon nitrogen triple bond with a lone pair of electrons on nitrogen. All atoms satisfy the octet rule and there is no hyper valent atom in the molecule.

The formal charge an carbon and nitrogen is calculated as follows;

No. of valence electron on atom - [non bonded electrons + no. of bonds]

Therefore, for carbon and nitrogen, we have;

formal charge on carbon = 4 - (0 + 4) = 0

formal charge on nitrogen = 5 - (2 + 3) = 0

Hence carbon and nitrogen both possess zero formal charges.

6 0

4 years ago

Which word is used describe someone who is fair and has no bias?

rodikova [14]

Impartial is the word that you want to use

6 0

3 years ago

Read 2 more answers

A gas with a volume of 8 L at a temperature of 473K is switched to a new container with a temperature of 350K. If the pressure r

Digiron [165]

Answer:

The new volume is 5.92 L, which is approximately 6 L

Explanation:

As the gas temperature increases, the molecules move faster and take less time to reach the walls of the container. This means that the number of crashes per unit of time will be greater. That is, there will be an increase (for an instant) in the pressure inside the container and the volume will increase.

So Charles's Law is one of the gas laws that relates the volume and temperature of a certain amount of gas at constant pressure and says that:

If the temperature increases the volume increases

If the temperature decreases the volume decreases

Mathematically this is expressed by:

$\frac{V}{T}=k$

When you want to study two different states, an initial and a final one of a gas, this law is expressed by:

$\frac{V1}{T1} =\frac{V2}{T2}$

In this case:

V1: 8 L
T1: 473 K
V2: ?
T2: 350 K

Replacing:

$\frac{8 L}{473K} =\frac{V2}{350K}$

Solving:

$V2=350K*\frac{8L}{473K}$

V2=5.92 L

<u><em>The new volume is 5.92 L, which is approximately 6 L</em></u>

5 0

3 years ago

You would expect magnesium to be most similar in properties to

gladu [14]

Answer:

Calcium

Explanation:

"Calcium is a mineral that is necessary for life. In addition to building bones and keeping them healthy, calcium enables our blood to clot, our muscles to contract, and our heart to beat. About 99% of the calcium in our bodies is in our bones and teeth. "

3 0

4 years ago

How to find the average speed of something

Mila [183]

Answer:

if you want to find average speed so u need to use this formula

Average speed = $\frac{Total Displacement}{Total Time}$

4 0

3 years ago

Mixtures can be separated by chemical/physical change.​

Mixtures can be separated by chemical/physical change.