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solmaris [256]
3 years ago
5

PLEASE HELP!!!

Physics
1 answer:
vitfil [10]3 years ago
3 0

The error in her thinking is that oxygen has has six electrons and a negative charge is acquired by nitrogen when it gains two electrons.

Oxygen is a member of group 16. The elements in group 16 has six valence electrons. This means that they need an extra two electrons to complete their octet.

If an atom gains two electrons, it will have a charge of -2 and not +2, a positive charge means that the atom lost electrons. Nonmetals like oxygen do not loose electrons rather they gain electrons.

Learn more: brainly.com/question/14156701

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A tennis ball is traveling at 50 m/s and has a kinetic energy of 75J. Calculate the mass of the tennis ball.
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A person opens a door by applying a 10-N force perpendicular to it at a distance 0.90m from the hinges.
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You faded out there before asking your question. 
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6 0
4 years ago
Part 1
wel

Answer:

Part 1: 0.3789

Part 2: 746 J

Part 3: 2.162 kW

Explanation:

Part 1:

Eff=  1-\frac{1223}{1969}

Eff= 0.378873 ≈ 0/3789

Part 2:

W= 0.3789(1969)

W= 746 J

Part 3:

Power=\frac{W}{t}

Power= \frac{746}{0.345}

Power= 2162.3188 Watts

2162.3188 W-----> 2.162 kW

4 0
2 years ago
How many atoms are in 3.5 moles of sulfur
irina [24]
There are 2.1077x10^24 atoms of sulfur in 3.50 mols of sulfur.
5 0
3 years ago
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