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Svet_ta [14]
2 years ago
6

I’m really confused can someone help me?

Chemistry
2 answers:
Nimfa-mama [501]2 years ago
8 0
The 2nd energy level can hold a maximum of 8 electrons.

Gre4nikov [31]2 years ago
5 0

Answer:

the second energy level can hold a maximum of eight electrons

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does the nitro group on the pyridine ring make the ring more electron rich or more electron deficient
Arte-miy333 [17]

Answer:

more electron deficient

Explanation:

The nitro group is an electron withdrawing group. It withdraws electrons from the pyridine ring by resonance.

This electron withdrawal by resonance makes the pyridine ring less electron rich or more electron deficient.

Hence, the nitro group makes the pyrinde ring more electron deficient

3 0
2 years ago
Lonic or Covalent? Fe2O3
yan [13]
Fe2o3 this is covalent
8 0
2 years ago
How would I complete and balance the equation <br> Mg + Br2 &gt;
Katyanochek1 [597]
Hope this helps you.

3 0
3 years ago
What are some bad thing jellyfish do?
True [87]
Jellyfish aren't necessarily bad or do bad things humans do find that the tentacles that happen to "shock" or "electructe" people are bad. As well as the way jellyfish live in one grouping it is rare but you can find jellyfish out of a group, they do this that way they can eat and stay away from predators.


I hope this helped you!
3 0
3 years ago
How many grams of KBr is required to prepare 100 mL of<br> 2.0 M KBr solution?
sesenic [268]

Answer:

23.8g

Explanation :

Convert 2.0M into mol using mol= concentration x volume

2.0M x 0.1L (convert 100mL to L since the units for M is mol/L)

= 0.2 mol

We can now find grams by using the molar mass of KBr

=119.023 g/mol (Found online) webqc.org

but can be be calculated by using the molecular weight of K and Br found on the periodic table

We can now calculate the grams by using grams=mol x molar mass

119.023g/mol x 0.2mol

= 23.8046 g

=23.8g (rounded to 1decimal place)

4 0
2 years ago
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