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Yuki888 [10]
2 years ago
13

Please help I’ll mark brainliest. Thank you :)

Chemistry
1 answer:
Jobisdone [24]2 years ago
6 0

Answer:

a. There are only 5 electrons in 2p. 2p should be filled with 6 electrons prior to 3s and 3p

b. There are 8 electrons in 2p. 2p should be filled only with 6 electrons (not 8)

Explanation:

The typical electron configuration: 1s2 2s2 2p6 3s2 3p6

a. There are only 5 electrons in 2p

=> should be 1s2 2s2 2p6 3s2 3p2

b. There are 8 electrons in 2p

=> should be 1s2 2s2 2p6 3s2 3p1

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I need this so badly!
Alla [95]

Answer:

See below

Explanation:

    Use Ideal Gas Law

  PV = n RT          using R = .082057366 l-atm/k-mol

                                           T must be in Kelvin

                         solve for 'n'

  .92 * 1.6  = n  * .082057366 * 287

          n = .0625 moles

then the mole weight:    .0625 * x = .314

                                             x = mole weight = 5.025 gm

"Systems with either very <u>low pressures or high temperatures</u> enable real gases to be estimated as “ideal.”  "

 

4 0
2 years ago
Read 2 more answers
What is the percent of hydrogen peroxide in the solution when 5.02g of H2O2 solution reacts to produce 0.153g of H2O2? 2H2O2 (l)
Murljashka [212]

<u>Given:</u>

Mass of H2O2 solution = 5.02 g

Mass of H2O2 = 0.153 g

<u>To determine: </u>

The % H2O2 in solution

<u>Explanation:</u>

Chemical reaction-

2H2O2(l) → 2H2O(l) + O2(g)

Mass % of a substance in a solution = (Mass of the substance/Mass of solution) * 100

In this case

% H2O2 = (Mass H2O2/Mass of solution)* 100 = (0.153/5.02)*100 = 3.05%

Ans: % H2O2 in the solution = 3.05%

5 0
3 years ago
Please I would give brainiest to anyone who answers number 2 and 3 for me
DerKrebs [107]

can you upload a clearer photo?

6 0
3 years ago
Based on the diagram below, which would have the most inertia?
jeka94

Answer:

The sphere on the left has the most inertia because it has more mass.

Explanation:

Inertia is a property of matter of a substance.

According to Newton's first law of motion, a body continues to stay in the state of rest or constant velocity unless acted upon a external force.

The amount of inertia that an object possess is proportional to the mass of the object.

The sphere on the left is of 300 kg and that on the right is of 30 kg.

Clearly, the sphere on the left has more mass.

Therefore, the sphere on the left has the most inertia.

6 0
3 years ago
Read 2 more answers
A 2uc charge is at rest in a magnetic field of 2 t pointing along the x-axis. what is the force acting on this charge in the mag
sp2606 [1]
Zero...bcz force which acts on this charge is f=qvB q=2uc ,B=2T and v=o
so,f=zero...
4 0
4 years ago
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