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ser-zykov [4K]
3 years ago
13

How are electrons arranged around the nucleus?

Chemistry
1 answer:
mrs_skeptik [129]3 years ago
7 0
There arranged in energy shells each shell has a limit to how many electrons they can carry this varies with element.
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PLEASE HELPPP
rusak2 [61]

Answer; molecule

Explanation:

5 0
3 years ago
Can someone please help me with this question
12345 [234]

Explanation:

a) 3Pb(NO3)2 + Al2(SO4)3 ---> 3PbSO4 + 2Al(NO3)3

Double displacement

b) 2Cl2 + 3O2 ---> 2Cl2O3

Synthesis

c) 2Fe2O3 + 3C ---> 4Fe + 3CO2

single displacement

8 0
3 years ago
What mass of AI2O3 forms from 16 g O2 and excess AI?
vlada-n [284]

Answer:

2Al+1.5O2→Al2O3

Thus, 2 mol of Al combine with 1.5 mol of oxygen to form 1 mol of Al2O3.

2 mol of Al corresponds to 2×27=54 g.

Thus, the weight of Al used in the reaction is 54 g.

4 0
2 years ago
He then takes a powerful magnet and positions it below the table and the keys. He finds that he is able to drag the keys along t
Mamont248 [21]

C. magnetic forces act at a distance

Explanation:

Since he was able to drag the keys along the table by moving the magnet, it shows that magnetic forces acts a distance.

Magnetism is a property exhibited by a wide range of materials.

Around a bar magnet, there are field forces in which the forces of the magnets are felt.

  • Magnetic forces are non- contact forces. They don't need to be together to exert their force.
  • This is why magnetic forces act at a distance.

learn more:

Electromagnet brainly.com/question/2191993

#learnwithBrainly

7 0
3 years ago
44 a 25.0-g sample of each of three unknown metals is added to 25.0 ml of water in graduated cylinders a, b, and c, and the fina
andreyandreev [35.5K]
Cylinder A - Adding 25 grams raised the water level by roughly 3.2 mL

Cylinder B - Adding 25 grams raised the water level by roughly 2.8 mL

Cylinder C - Adding 25 grams raised the water level by roughly 3.5 mL

Calculate grams/mL (density)

A. 25 g/3.2 mL = 7.8125 g/mL = Iron
B. 25 g/2.8 mL = 8.9286 g/mL = Nickel
C. 25 g/3.5 mL = 7.1429 g/mL = Zinc

Hope I helped!

5 0
3 years ago
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