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aleksandrvk [35]
2 years ago
5

Please Help Me Answer Numbers 7, 9, 10, and 11!

Chemistry
1 answer:
CaHeK987 [17]2 years ago
5 0
Add a 8 kid and u are just adding
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A partir de que materiales se obtienen los metales? en que se diferencian?
Anon25 [30]
Los metales son materiales que se obtienen a partir de minerales que forman parte de las rocas. Por ejemplo, el metal hierro se extrae de minerales de hierro como la magnetita o la siderita.
6 0
3 years ago
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How many moles of iron in a sample that contains 7.91×10^23 atoms of iron?
vazorg [7]

Answer: 1.31

Explanation:  

No.of moles = given no.of atoms/Avagadro number

= 7.91×10^23 / 6.022 x 10^23

= 1.31

therefore, no.of moles = 1.31

Hope it helped u,

pls mark as the brainliest

^_^

5 0
2 years ago
What are the limitations of seed banks?
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3 years ago
What is the most common substance found in natural gas
kifflom [539]
Methane composes most of the natural gas.
8 0
3 years ago
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Predict how many grams of KCI is produced from 40 grams of K?
Nutka1998 [239]

Explanation:

firstly find for the molar mass of kcl and molar mass of k

and then

molar mass of k = x

molar mass of kcl= 40

cross mutiply and then simplify you will get your answer

5 0
3 years ago
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