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pogonyaev
2 years ago
13

Ultraviolet rays are absorbed by water in the atmosphere not absorbed by water in the atmosphere slowed down by water in the atm

osphere rendered harmless by water in the atmosphere
Chemistry
1 answer:
Alekssandra [29.7K]2 years ago
5 0
Slowed down by water in the atmosphere
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Who is considered the founder of the periodic table of the elements?
nata0808 [166]

Answer:

Dmitry Mendeleev

Explanation:

Around 1869 a Russian scientist, Dmitry Mendeleev formed what is now known as the periodic table or chart. The Mendeleevian periodic table was based on the atomic weights of elements using the periodic law. The periodic law states that "chemical properties of elements are a periodic function of their atomic weights".

The modern periodic table was re-stated by Henry Moseley in the 1900s. He changed the basis of the periodic law to atomic masses.

7 0
2 years ago
Please Help Quick!!!<br><br> Lewis Structure of PO3 3-
nevsk [136]

1. Find its coordination figure/coordination number of central atom (CF)

Ev = Vallence electron of central atom

Σe = electrons donated from substituents

Terminal O gives 0 electrons, hence Σe = 3 x 0

charge = charge of the compound

2. Find EP (electron pairs) and LP (lone pairs)

LP = CF - EP

3. Draw the skeleton with octet substituents (top right figure)

4. Find formal charge for each atoms (Qf)

5. Write formal charge near atom in skeleton

6. Enjoy

8 0
2 years ago
To fulfill the octet rule electron sharing leads to ____ electrons around each atom?
Dimas [21]
D. 8

You can predict it from it's name "Octet" means Eight. Atom must have that number of electron to have a stable structure!

Hope this helps!
5 0
2 years ago
Read 2 more answers
What is the mass of a 5.00 cm^3 piece of copper having a density of 8.96 g/cm^3
erik [133]

Answer:

44.8 g

Explanation:

Density = mass / Volume

Mass = density x Volume = 8.96x 5 = 44.8 g

5 0
3 years ago
Explain why gasoline is insoluble in water
SVETLANKA909090 [29]

Answer:

it's not

Explanation:

gasoline is not soluble in water in gasoline is a complex mixture of nonpolar compounds such as long-chain hydrocarbons etc water is a polar molecule as a result of the gasoline molecules cannot enter water and borla solution

4 0
2 years ago
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