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Xelga [282]
3 years ago
7

How many valence electrons do the halogens have

Chemistry
1 answer:
gladu [14]3 years ago
7 0
8 they have eight :))))))))
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How many total atoms are in C3H-NO3?
Alik [6]

Answer:

Percent composition by element

Element Symbol # of Atoms

Hydrogen H 5

Carbon C 3

Nitrogen N 3

Oxygen O 9

5 0
3 years ago
How to make non-sticky slime without borax / plz help will mark as brainliest
ddd [48]
In a bowl, combine 1/4 cup of while glue and 1 tablespoon of liquid laundry detergent. Stir to combine, then wait a few minutes for it to turn gooey<span>. If you want to </span>make<span> colored </span>slime<span>, stir in a few drops of food coloring into the glue before you add the detergent.</span>
7 0
3 years ago
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19. When an atom of iron loses all of its 4s electrons and one of its 3d electrons, what is its charge?
Snowcat [4.5K]
Its charge would be the amount of electrons that are lost in total, which the information is not stated

7 0
3 years ago
What is the mass of 4.56 moles of copper (ii) fluoride​
musickatia [10]

Answer:

463.0 g.

Explanation:

  • We can use the following relation:

<em>n = mass/molar mass.</em>

where, n is the mass of copper(ii) fluoride​ (m = 4.56 mol),

mass of copper(ii) fluoride​ = ??? g.

molar mass of copper(ii) fluoride​ = 101.543 g/mol.

∴ mass of copper(ii) fluoride​ = (n)(molar mass) = (4.56 mol)(101.543 g/mol) = 463.0 g.

7 0
3 years ago
When a new bond forms in a chemical reaction, what happens?
Kisachek [45]
The answer to this question would be A. Energy is released. 

When a chemical bond is a form, the bond will either suck up energy or produce energy. So, to be precise the energy is not always released but also can be absorbed. In this case, the energy released number will be a minus.

Options B and C is definitely wrong since the bond is formed by an electron, it won't affects neutron/proton.
Option D might be true since the product is made of 2 or more atoms then it would seem larger. But the size of the actual atom won't be increased.

8 0
3 years ago
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