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nirvana33 [79]
3 years ago
14

How do the number of protons in an atom affect the atom's identity?

Chemistry
1 answer:
fredd [130]3 years ago
6 0

Answer:

The number of protons in an atom define each individual element because the number of protons is the atomic number which is the defining property of an atom and never changes. The number of protons determines an atom's identity. For example, Oxygen has an atomic number of 8, so it has 8 protons, so no matter what ionic compound or molecule it's part of, every single Oxygen atom will always have 8 protons each.

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blondinia [14]
The Molar mass of 50g of water is (18.015 g/mol). Hope this helps
3 0
3 years ago
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How many moles of HCl are present in 4.7 L of a 4.23 M HCl solution?
REY [17]

Hey There!

Volume = 4.7 L

Molarity = 4.23 M

Therefore:

n = M *V

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n = 19.881 moles of HCl

hope this helps!

6 0
3 years ago
Is a mixture of toys a substance or homogeneous and heterogeneous mixture
Aleonysh [2.5K]

Answer:

homogeneous

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3 years ago
In the chemical reaction: NaOH (s) + H2O Na+ (aq) + OH- (aq), which substance (or substances) is in solution? A. Na+ (aq) only B
bonufazy [111]

Answer:

in a chemical reaction of NaOH with H2O, after NaOH is completely disassociated, we will find Na+ and OH- ions in the solution. (option C).

Explanation:

In a reaction where NaOH is added to H2O.

NaOH is considered a strong base, this means that in an aqueous solution ( in water) it's  able to completely disassociate in ions.

There will not remain any NaOH in the solution. This means option D is not correct.

The ions in which NaOH will disassociate are : NaOH → Na+ + OH-

These ions we will find in the solution.

Not only Na+ because NaOH is a strong base, so there will be a lot of OH- ions as well in solution.

This means in a chemical reaction of NaOH with H2O, after NaOH is completely disassociated, we will find Na+ and OH- ions in the solution.

3 0
3 years ago
If a chemical change has taken place, which of these is most likely true?
____ [38]
<span>C. A completely new substance is formed.</span>
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3 years ago
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