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1 year ago

9

Help please giving brainliest!

1 answer:

Alenkinab [10]1 year ago

4 0

Answer:

Temperature and volume are directly related.

The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure. :)

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Use the collision theory to explain how increasing the surface area of a solute will increase the rate of the dissolving process

Maksim231197 [3]

<span>More surface area --> more molecules of the solute in contact with the solvent --> more chance for a solvent molecule to collide with the solute molecules --> dissolves faster

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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5 0

2 years ago

Which of the following will allow measurement of a liquids volume with the greatest precision ?

Evgesh-ka [11]

I personally think that it’s C.
(i’m sorry if it’s wrong)

6 0

2 years ago

Read 2 more answers

Which of the following can be a

yanalaym [24]

The answer would be A

6 0

2 years ago

3. Calculate the volume, in mL, of 100.0 g of alcohol, if the density is 0.79 g/mL.

Naya [18.7K]

Answer:

The answer is

<h2>126.58 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

<h3> $volume = \frac{mass}{density}$ </h3>

From the question

mass of alcohol = 100 g

density = 0.79 g/mL

The volume is

$volume = \frac{100}{0.79} \\ = 126.58227848...$

We have the final answer as

<h3>126.58 mL</h3>

Hope this helps you

4 0

3 years ago

There are ___ atoms of oxygen in 300 molecules of CH3CO2H a) 300 b) 600 c) 150 d) 3.6 x 10^36

Maurinko [17]

<u>Answer:</u> The correct option is b) 600

<u>Explanation:</u>

Molecules are formed when two atoms of same or different elements combine together.

Atoms are the smallest unit of matter that combines to form a compound.

For the given chemical compound, $CH_3CO_2H$

Given number of molecules = 300 molecules

In 1 mole of the given chemical compound, there are 2 atoms of carbon, 4 atoms of hydrogen and 2 atoms of oxygen

Number of atoms of oxygen = $2\times \text{Number of molecules of compound}$

Number of atoms of oxygen = $2\times 300=600atoms$

Hence, the correct option is b) 600

8 0

2 years ago