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tester [92]
3 years ago
5

How do electrons transition between energy levels?

Chemistry
1 answer:
kow [346]3 years ago
7 0
The electron with its extra packet of energy becomes excited, and promptly moves out of its lower energy level and takes up a position in a higher energy level.
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UkoKoshka [18]
When organisms and plants died and sank to the bottom of swamps and oceans, brown soil-like materials called peat are formed. Over millions of years, the peat became covered with sand, clay and other minerals and the peat is converted into layers of sedimentary rocks. After a long time, different type of fossil fuels are formed.
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How many electrons are in the highest occupied energy level of these atoms?
Yuliya22 [10]
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3 years ago
What is the relationship of work with distance and the force?
kakasveta [241]

Answer:

Work is the use of force to move an object. It is directly related to both the force applied to the object and the distance the object moves. Work can be calculated with this equation: Work = Force x Distance.

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3 0
1 year ago
Give the IUPAC name for<br> Spell out the full IUPAC name of the compound.
Soloha48 [4]

Explanation:

Part A

Spell out the full name of the compound.

Part B

Spell out the full name of the compound.

Part C

Spell out the full name of the compound.

Part D

Spell out the full name of the compound.

IUPAC naming:

In organic chemistry, chemical compounds are named by a standardized method known as the IUPAC system. These four examples are all hydrocarbons with double and triple bonds. The names of the compounds are based on the length of the carbon chain, the position of the double or triple bonds and the position of any carbon groups branched off of the main chain.

5 0
2 years ago
How many coulombs are required to plate a layer of chromium metal 0.28 mm thick on an auto bumper with a total area of 0.40 m2 f
Rufina [12.5K]

Explanation:

The given data is as follows.

Thickness = 0.28 mm = 0.28 \times \frac{1}{10} cm = 0.028 cm

Area = 0.40 m^{2} = 0.40 \times 10^{4} cm^{2} = 4000 cm^{2}

As, it is known that volume = area × thickness

So,             Volume = 4000 cm^{2} \times 0.028 cm      

                                = 112 cm^{3}

As density is mass divided by volume. So, mass of chromium will be calculated as follows.

                   Density = \frac{mass}{volume}  

            7.20 g/cm^{3} = \frac{mass}{112 cm^{3}}      

                      mass = 806.4 g

As, mass of 1 mole of chromium is 52 g. So, number of moles in 806.4 g of chromium will be as follows.

              No. of moles = \frac{mass}{molar mass}                            

                                     = \frac{806.4 g}{52 g}

                                     = 15.50 mol

In chromate ion, (CrO^{2-}_{4}) charge on Cr is +6. It means that 6 electrons are needed to reduce Cr^{+6} into Cr.

As, 1 mole of Cr^{+6} ions require 6 moles of electrons. Therefore, moles of electrons for 15.50 mol will be calculated as follows.

                              6 × 15.50 mol = 93.04 mol

To calculate number of electrons we multiply number of moles by Avogadro's number as follows.

               93.04 mol \times 6.02 \times 10^{23}

                      = 560.13 \times 10^{23}

                     = 5.6 \times 10^{25} electrons

There is magnitude of 6.241 \times 10^{18} times the charge on an electron is equal to 1 coulomb.

Hence, number of coulombs will be as follows.

              No. of coulombs = \frac{5.6 \times 10^{25}}{6.241 \times 10^{18}}

                                           = 0.897 \times 10^{7} C

or,                                        = 8.97 \times 10^{6} C

Thus, we can conclude that 8.97 \times 10^{6} C are required to plate a layer of chromium metal with given data.

4 0
2 years ago
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