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3 years ago

10

“Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil a

t 300°C and fuel oil at around 370°C.” What topic is the teacher most likely talking about?

1 answer:

ANEK [815]3 years ago

3 0

Well its Organic Chemistry... and is the Fractional Distillation of Crude Oil

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Help needed ASAP!<br> Thanks for helping!!:)

yulyashka [42]

Answer:

I hope this helps you :)

Explanation:

Question 1 - B
Question 2 - A
Question 3 - D
Question 4 - C

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2 years ago

brimine and chlorine are in group 7 and they both form diatomic molecule. however bromine molecule exist as liquid at room temp

Ne4ueva [31]

Answer: difference in Vander Waals forces

Explanation:

The intermolecular force of attraction between the molecules in chlorine is WEAKER than that of Bromine.

This force is known as VANDER WAALS forces. And it DECREASES down the group; so Chlorine which is placed higher is a GAS, while Bromine placed lower in Group 7 is a LIQUID.

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3 years ago

Rank the following steps involved in preparing a dilute solution from a stock solution in order from first to last.

Serggg [28]

Answer: C - B - A - D

Explanation:

-Obtain a flask that is thoroughly cleaned

-Add the desired amount of stock solution

-Add deionized water until the volume reaches the mark on the flask.

- Cap the flask and invert several times to thoroughly mix the solution.

5 0

3 years ago

What do you notice about the reactivity of an element and the number of valence electrons it have?

miss Akunina [59]

The more electrons it has, the more reactive it is

7 0

3 years ago

Give an example of how you can participate in civics in your public life.

Lera25 [3.4K]

Answer:

please give me brainlist and follow

Explanation:

Examples include voting, volunteering, participating in group activities, and community gardening. ... Participating in the electoral process by voting or registering others to vote is an example of civic participation that impacts health.

3 0

3 years ago