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kari74 [83]
3 years ago
14

The mass of an atomic number best refers to the number of

Chemistry
2 answers:
Vinvika [58]3 years ago
7 0
Answer:
Atomic number refers to the number of protons in an atom. It’s also used to identify what element it is, as every element has a different number of protons.
adelina 88 [10]3 years ago
5 0

Answer:

Mass number

Explanation:

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3 years ago
When gas particles collide with a surface
sergij07 [2.7K]
The average kinetic energy of a collection of gas particles depends on the temperature of the gas and nothing else.
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3 years ago
Which of the following is an oxide which is strongly acidic?
borishaifa [10]

Answer:

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Explanation:

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3 years ago
What are the two processes of ocean to cloud?
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4 0
3 years ago
3. Determine the moles of sodium, Na, containing 7.9x1024 atoms.​
-BARSIC- [3]

Answer:

12.7mol Na.

Explanation:

Hello there!

In this case, according to the concept of mole, which stands for the amount of substance, we can recall the concept of Avogadro's number whereby we understand that one mole of any substance contains 6.022x10²³ particles, for the given atoms of sodium, we can calculate the moles as shown below:

7.9x10^{23}atoms*\frac{1mol}{6.022x10^{23}atoms} \\\\

Thus, by performing the division we obtain:

12.7molNa

Regards!

8 0
3 years ago
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