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sergey [27]
3 years ago
8

What is the mass number of neon (Ne)? A. 20 B. 18 C. 10 D. 2​

Chemistry
2 answers:
kupik [55]3 years ago
7 0

Answer:

A

Explanation:

it is round up to 20

alexandr1967 [171]3 years ago
3 0

Answer:

20 is the answer (A)

Explanation:

Neon/Atomic mass

20.1797 u

this is approximately 20 so 20 is the answer (A)

hope this helps!

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A green rat snake that lives in the grass and a brown rat snake that lives in the desert is a form of what ?
liberstina [14]

A green rat snake that lives in the grass and a brown rat snake that lives in the desert is a form of geographically separated species.

Explanation:

The habitats of the green rat snake  and brown rat snake shows that they are geographically separated species.

The two rat snakes are different species because of their distinct habitat and morphology.

When two species get separated by habitat their breeding method changes either by morphology or breeding pattern.

Such species do not produce viable offspring.

Thus a green rat snake and a brown rat snake have very different habitats they are now two different species.

Such species are said to be reproductively isolated species. Two species having genetic divergence undergo natural selection to adapt to the environment.

6 0
4 years ago
If you have an element with 46 protons and 44 electrons, the net charge of the element is
finlep [7]

The answer is b because 46-44 = positive 2.

8 0
4 years ago
An atom of lithium (Li) and an atom of chlorine (Cl) engage in a chemical reaction.
jeka57 [31]

the resulting compound is Li+ -------- Cl- in a crystalline lattice structure.

so first choice is wrong as its not a double bond

third choice is wrong as its not a ball-and-stick

fourth choick is also wrong as its not a triple bond

correct ans is The chemical compound will have a network structure.

8 0
3 years ago
Read 2 more answers
This age group walks and runs confidently, but may run into things, walks up and down stairs without assistance, scribbles in de
Slav-nsk [51]
A baby, idk if that’s right, my bad if it isn’t
6 0
4 years ago
Calculate the pH of a solution if the concentration of hydronium ions (H3O+) is 4.8 x 10-11M?
Gelneren [198K]

Answer:

Explanation:

[ H₃O⁺¹] = 4.8 x 10⁻¹¹ mol / l

H₃O⁺¹ = H₂O + H⁺

[ H₃O⁺¹] = [H⁺]

pH = -log[H⁺]

= -log[ 4.8 x 10⁻¹¹]

= -log 4.8 + 11

= - 0 .68 + 11

= 10.32

6 0
3 years ago
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