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krek1111 [17]
3 years ago
5

(02.02 LC) The two main types of weathering are Select one:

Chemistry
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

d

Explanation:

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Fresh water pollutants  are substances which pollute fresh water and  industrial waste, is most harmful fresh water pollutant to man and aquatic organisms.

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5 0
1 year ago
How many atoms of oxygen are in 0.100 mol of silicon dioxide?
lys-0071 [83]
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2) From the formula you have 1 molecula of SiO2 contains 1 atom of SiO2

3) Then, 0.100 mol of SiO2 contains 0.1 mol of Si

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Answer: 6.02*10^22 atoms
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3 years ago
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3 years ago
How would you prepare 3.5 L of a 0.9M solution of KCl?
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V=3,5L\\&#10;Cm=0,9M\\&#10;M_{KCl}=74\frac{g}{mol}\\\\&#10;C_{m}=\frac{n}{V}\\\\&#10;n=\frac{m}{M}\\\\&#10;C_{m}=\frac{m}{MV} \ \ \ \Rightarrow  \ \ \ m=C_{m}MV\\\\&#10;m=0,9\grac{mol}{L}*74\frac{g}{mol}*3,5L=233,1g

B. Add 233 g of KCl to a 3.5 L container; then add enough water to dissolve the KCl and fill the container to the 3.5 L mark. 
4 0
3 years ago
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