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Readme [11.4K]
2 years ago
5

Revise the following statement to make it true:

Chemistry
1 answer:
tino4ka555 [31]2 years ago
6 0

Answer:

All the individuals of a species living within a specific area are collectively called a population.

Explanation:

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Explanation:

Aw 12 = 6.02214076*10^23 atoms

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Are most elements on the periodic table nonmetals?
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A chemical reaction takes place in which energy is released. Arrange the reaction’s characteristics in order from start to finis
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3 years ago
How many valence electrons does a helium atom have? what is the formula of the ion formed when potassium achieves noble-gas elec
OlgaM077 [116]

> How many valence electrons does a helium atom have?

The electron configuration of Helium is simply 1s2. We see that its outermost shell is the s shell and it contains 2 electrons, therefore the number of valence electrons is also 2.

 

> What is the formula of the ion formed when potassium achieves noble-gas electron configuration?

Potassium has a electron configuration of [Ar] 4s1. To have an electron configuration of only [Ar] which is a noble gas, the one electron from 4s1 should be removed, hence:

<span>K+</span>

3 0
4 years ago
Which of the solutions below is a weak electrolyte? nacl(aq) koh(aq) hcl(aq) h2so3(aq) all of these?
Deffense [45]

Answer:-

H2SO3 (aq)

Explanation:-

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H2SO3 is not a strong acid and dissociates to a small extent into ions in water.

Hence number of ions formed is less. Hence it is a weak electrolyte.

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