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Vesna [10]
3 years ago
10

What is one pro and one con of mining?

Chemistry
1 answer:
blondinia [14]3 years ago
8 0

Answer:

Pro exercise con suffication

Explanation:

...

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A sample of propane, C3H8, contains 14.6 moles of carbon atoms. How many total moles of atoms does the sample contain
seraphim [82]

Answer:

161 atoms

Explanation:

A sample of propane, C3H8, contains 14.6 moles of carbon atoms. How many total moles of atoms does the sample contain

every molecule of propane contains 3+8=11 atoms

so

14.6 moles contain 14.6 X 11 = 161 atoms

4 0
3 years ago
Which of the following atoms has four valence electrons? (2 points) Select one: a. beryllium (Be) b. carbon (C) c. titanium (Ti)
bazaltina [42]
Beryllium (Be) has four.
3 0
3 years ago
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Give below are the four mixtures. Choose the correct one which can be separated by winnowing. (i) soybean and chickpeas (ii) whe
victus00 [196]

Answer:

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Explanation:

Winnowing is the process of separating heavier and lighter components of a mixture by blowing air through the mixture. This implies that the relative weight of the particles in the mixture determines whether they can be separated by winnowing or not.

However, chips are heavier than wafers. wafers refer to a very light snack which is easily blown away by a current of air. Hence banana chips and wafers can be separated using the method of winnowing.

4 0
3 years ago
What is the Kp of this reaction at 700oC if the Kc is 0.40? 
dem82 [27]
I am pretty sure its D
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What is a mixture of two insoluble mixtures called​
madreJ [45]

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Oil and Water

5 0
3 years ago
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