3 years ago

Which is a homogeneous mixture?

Chemistry

1 answer:

Akimi4 [234]3 years ago

6 0

A homogeneous mixture is A. Pure substance.

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fenix001 [56]

Easy peasy! All we need to do is plug this formula into our calculator:

-log(M)

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3 years ago

the volume of gas in a container was originally 3.24L, while at standard pressure 1.00 atm. what will the volume be if the press

Simora [160]

Hello!

To solve this problem, we will use the Boyle's Law, which describes how pressure changes when volume changes and vice-versa. The equation for this law is the following one, and we'll clear for V2:

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3 years ago

A 0.55 g sample of H20 contains how many<br>molecules of water?<br>Answer in units of molec.

noname [10]

Answer:

Explanation:

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But num of moles = reacting mass / molar mass

Molar mass of H20= 2*1 + 16 = 2+16 = 18g

Reacting mass of H20 = 0.55g

Therefore, num of moles of H20 = 0.55g/18g = 0.031 moles

Therefore, num of molecules of H20 = 0.031 * 6.02*10^23

= 1.87*10^22 molecules of H20

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3 years ago

"solid potassium iodide decomposes into iodine gas and solid potassium. Write a a balanced chemical equation for this reaction"

wel

$KI (s) ----\ \textgreater \ K(s) + I_2 (g)$

Now, balance the equation:

$2KI (s) ----\ \textgreater \ 2K(s) + I_2 (g)$

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myrzilka [38]

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