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Dafna1 [17]
3 years ago
14

What is the most effective way to maintain good indoor air quality?

Chemistry
1 answer:
Masja [62]3 years ago
4 0

Answer:

close all doors and windows so the air stays inside

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How many moles of Ca atoms are in 1 mol of CaSO4?
Galina-37 [17]

Answer:

6.02 x 10²³ atoms

Explanation:

Given parameters:

Number of moles CaSO₄ = 1 mole

Unknown:

Number of Ca atoms in the given compound = ?

Solution:

The given compound is:

          CaSO₄

     1 mole of CaSO₄  is made up of 1 mole of Ca atoms

Now;

   1 mole of any substance contains 6.02 x 10²³ atoms

  1 mole of Ca atoms will also contain 6.02 x 10²³ atoms

7 0
3 years ago
_______ particles move very fast and freely.<br><br> A.Gas<br><br> B.Solid<br><br> C.Liquid
inn [45]
The answer is A. Gas particles!
6 0
3 years ago
What is the property of water, powdered drink mix, and sugar after mixing
MArishka [77]
When all ingredients are mixed the 2 solids are dissolved into the water making it all liquid but the taste is still there. The drink mix gives it a little flavor and the sugar makes it sweet. The water is there to make it a liquid, it all turns out to be a colored liquid. Hope this helped! :)
7 0
3 years ago
Atoms of arsenic (As) are often added to silicon (Si) in a process called doping to change the conductivity of the silicon. How
IRINA_888 [86]

Answer:

d) An atom of arsenic has one more valence electron and more electron shells than an atom of silicon, so the conductivity increases because the arsenic atom loses the electron.

Explanation:

This is an example of a n-type semiconductor. The additional electron introduced to the 'grid' of silicon atoms causes an increase in the conductivity of the silicon. This additional electron is introduced as arsenic loses its extra electron.

5 0
3 years ago
Read 2 more answers
NAME THESE ALCOHOLS. CH3CH2CH2CH2OH AND CH3CH(OH)CH3
ale4655 [162]
"CH3CH2CH2CH2OH " is known by the name of "n-butanol" and "CH3CH(OH)CH3" is known by the name of "<span>Isopropyl alcohol". These two given products are basically alcohols. I hope that this is the answer that you were looking for and the answer has actually come to your desired help. Thanks for joining brainly and getting your questions solved.</span>
3 0
3 years ago
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