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fredd [130]
3 years ago
12

Who arranged the first periodic table.

Chemistry
1 answer:
klasskru [66]3 years ago
7 0

Answer/Explanation:

Dimitri Ivanovich Mendeleev

Please mark me BRAINLIEST! please!

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Halons contain halogens, which are highly reactive with oxygen. true or false
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true

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How to balance NH3+NO=N2+H2O
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NH₃+NO=N₂+H₂O;

NH₃+NO=N₂+6H₂O;

NH₃+6NO=N₂+6H₂O;

4NH₃+6NO=N₂+6H₂O;

4NH₃+6NO=5N₂+6H₂O.

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Which statement explains the similarity between momentum and kinetic energy of an object?
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Momentum and Kinetic Energy...They both are directly proportional to the Mass and Velocity of the object and they are the only factors which determine them.

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3 years ago
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50 ml of 0.2 M acetic acid is shaken with 10 g activated charcoal. The concentration of acetic acid is reduced to 0.5 times the
Olegator [25]

Answer:

0.03 g_{acid}/g_{charcoal}

Explanation:

The amount adsorbed (solute) is the acetic acid, and the adsorbent is the activated charcoal. The mass of the adsorbent is 10 g.

So, we need to calculate the mass of the acetic acid as follows:

m = n*M = C*V*M

Where:

n: is the number of moles = C*V

M: is the molecular mass =  60.052 g/mol

C: is the final concentration of the acid = 0.5*0.2 mol/L = 0.10 mol/L

V: is the volume = 50 ml = 0.050 L

m_{acid} = C*V*M = 0.10 mol/L*0.050 L*60.052 g/mol = 0.30 g

Now, the amount of solute adsorbed per gram of the adsorbent is:

\frac{m_{acid}}{m_{charcoal}} = \frac{0.30 g}{10 g} = 0.03 g_{acid}/g_{charcoal}

Therefore, the amount of solute adsorbed per gram of the adsorbent is 0.03 g/g.

I hope it helps you!

3 0
2 years ago
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