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Rus_ich [418]
3 years ago
5

Which of these pairs of atoms are isotopes?

Chemistry
1 answer:
Troyanec [42]3 years ago
6 0

Answer:

c

Explanation:

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The process of rocks being broken apart by physical processes is called
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T <span>The process in nature that breaks down rocks is called physical weathering.</span>
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How many number of electrons are in nitrogen and aluminium in their ionic States?​
mariarad [96]
If you look at the periodic table you’ll noticed a trend. Group one, sometimes called 1A, has hydrogen in it, it’s group (column) has a positive charge. The group (column) next to it Group 2 sometimes called 2A has twice the charge as group 1. Then you skip the transition metals, and then land on group (column) 13. These guys have a charge of +3 typically. Then you have group 14, sometimes called 4A, and it’s weird and it kind of breaks with this trend. Then you have group (column) 15 next to it, sometime called 5A, which now starts to count down in charge, it has a charge of -3.

And each group (column) after that countdown to zero charge, once you have zero charge you know that you’re in the noble gases.

So, nitrogen in group (column) 15, also know as column 5A. This column has for the most part a charge of -3.

Aluminum is in group (column) 13, they have a charge of +3 typically.


I hope that helps.

7 0
3 years ago
The diagram below shows the layers in Earth's interior.
Arada [10]

Answer:

layer B is liquid because of the inner members and layer A is solid because of the outer members

5 0
2 years ago
In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:
irina [24]

Answer:

- 50.2 kJ

Explanation:

  • From the data given, the heat released per 2.0 moles of NH₃ is - 100.4 kJ.
  • The negative sign means that the reaction is exothermic and the energy is released.
  • <em>So, the ΔH in kJ of heat released per mole of NH₃ formed is (100.4 kJ/2) = - 50.2 kJ.</em>
4 0
3 years ago
T or F: Lone pairs around the oxygen atom of a water molecule play no role in determining its molecular geometry?
Mama L [17]

Answer:

Explanation:

They play a very important part. The geometry is not a straight line. It is an angle over 90 which means that the molecule has the same general shape as a boomerang. The two hydrogens and the 2 lone electron pairs try to get away as far as possible from each other. The actual shape results in a tetrahedron shape. But the two hydrogens and 1 oxygen actually look like the aforementioned boomerang.

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3 years ago
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