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Mamont248 [21]
2 years ago
5

How reactive is an atom of Sodium(Na) and why?

Chemistry
1 answer:
s344n2d4d5 [400]2 years ago
5 0
3rd one:
it is very reactive because it does not have a full Valence shell.

this is because it's in group 1 so it has one electron in its outer shell, and it wants to have a full outer shell ( which it can gain by losing the electron in a reaction).

Hope this helps :)
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Nesterboy [21]

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How to find the charge of an element
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it was observed that the atoms of a substance were arranged in a closely packed structure. What is most likely the state of matt
Kryger [21]

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Solid

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5 0
3 years ago
A chemical reaction at equilibrium always has _______.
natka813 [3]

Answer:

A

Explanation:

3 0
2 years ago
ILL GIVE A BRAINLY PLS HELP
Oksana_A [137]

Atoms are the unit of the molecule of the compound. The 3.01 x 10²⁴  atoms of oxygen are present in 5 moles of water and 3 moles of carbon dioxide in the sample.

<h3>What are atoms?</h3>

Atoms are the smallest fundamental unit of the compounds that can be given by Avogadro's number.

For calculating the oxygen atoms in 5 mole water:

If 1 mole = 6.02 × 10²³

Then, 5 moles = 5 ×  6.02 × 10²³

Hence, 3.01 x 10²⁴ atoms of oxygen are present in 5 moles of water.

Moles of carbon dioxide in the sample is calculated as:

If 1 mole of carbon dioxide = 6.02 × 10²³ molecules

Then moles in 1.8 x 10²⁴ molecules will be,

(1.8 x 10²⁴ molecules) ÷ (6.02 × 10²³ molecules)  = 3 moles

Hence, 3 moles of carbon dioxide is present in the sample.

Learn more about Avogadro's number here:

brainly.com/question/5098076

#SPJ1

3 0
2 years ago
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