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joja [24]
3 years ago
9

Which of the following statements is true?

Chemistry
1 answer:
Nata [24]3 years ago
4 0

Answer:

erosion can be reduced by planting trees and other plants

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La formula estructural del eter butil pentilico
Mama L [17]

Answer:

do you mean?

Explanation:

the structural formula of butyl pentyl ether

3 0
3 years ago
The capacity of the air to hold water vapor is basically a function of
Kisachek [45]
It is basically the function of evaporation.
If it is wrong i am sorry.
4 0
3 years ago
How many molecules of NH3 are produced from 4.72x10 negative 4 power g of H2?
Delvig [45]
<span>9.40x10^19 molecules.
   The balanced equation for ammonia is:
 N2 + 3H2 ==> 2NH3
   So for every 3 moles of hydrogen gas, 2 moles of ammonia is produced. So let's calculate the molar mass of hydrogen and ammonia, starting with the respective atomic weights:
 Atomic weight nitrogen = 14.0067
  Atomic weight hydrogen = 1.00794

   Molar mass H2 = 2 * 1.00794 = 2.01588 g/mol
 Molar mass NH3 = 14.0067 + 3 * 1.00794 = 17.03052 g/mol

   Moles H2 = 4.72 x 10^-4 g / 2.01588 g/mol = 2.34140921086573x10^-4 mol
   Moles NH3 = 2.34140921086573x10^-4 mol * (2/3) = 1.56094x10^-4 mol

Now to convert from moles to molecules, just multiply by Avogadro's number: 1.56094x10^-4 * 6.0221409x10^23 = 9.400197448261x10^19
   Rounding to 3 significant figures gives 9.40x10^19 molecules.</span>
7 0
3 years ago
Help please :) with this
Talja [164]

Answer:

The answer is 3

Explanation:

Hope this helps and have a wonderful day.

3 0
3 years ago
Which of the following quantum number combinations is not allowed in a ground-state atom?
ollegr [7]
The third option. The angular quantum number (l) can be any integer between 0 and n-1. Therefore, for the third option, l can be 0, 1, 2, 3, or 4—but not 5.
7 0
3 years ago
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