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Ksenya-84 [330]
3 years ago
8

The process of passing electricity through water to chemically separate it into hydrogen and oxygen is called what?

Chemistry
2 answers:
SVEN [57.7K]3 years ago
3 0
<span>electrolysis of water.
</span>
RSB [31]3 years ago
3 0
The answer is <span>electrolysis</span>
.
.
.
.i hope that was helpful ;]

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Which statements about the structure of the periodic table are true?
Liono4ka [1.6K]

Answer:

Below are the statements which are true about the structure of the periodic table:

B: The inner transition elements are placed at the bottom of the periodic table for easy viewing.

D: The distribution of electrons in energy levels is responsible for the shape of the periodic table.

Explanation:

Point A:

As we know that in a periodic table there are 7 period s and 18 groups. So, the number of periods is evidently lesser than the number of groups. But the shape of periodic table is regular and rectangular so point A is false.

Point B:

The inner transition elements or -f block elements are put at the bottom for easy viewing. These are the elements that have the valence electrons only  in the f-orbital's. Therefore, they are placed separately at the bottom side of the table so that they can be easily viewed or studied from there. So, point B is true.

Point C:

If we talk about option C, then it is very clear and true that considering a rectangular shape of the periodic table, the groups are vertically arranged and periods are horizontally arranged, therefore it is false.

Point D:

Atoms of all elements have definite electronic distribution in different energy levels like s, p d or f. This is a very prominent feature of periodic tale that elements are divided in specific blocks, s, p, d and f based on their electronic configurations. Therefore, it is true.

Point E:

We also know that no. of metals in a periodic table are more than the no. of non metals like almost 91 out of 118 elements  are metals in periodic table. Therefore, the point E "Nonmetals take up more than half the area of the periodic table." is false.

Hope it helps!

5 0
3 years ago
What is responsible for the difference in climate between eastern and western California
PilotLPTM [1.2K]
I believe that the answer is D. 

I hope this helps. :)
7 0
3 years ago
It would take one light year to travel to the sun true or false?​
slava [35]
True! I’m pretty sure
3 0
2 years ago
Charlie is frying an egg in a pan located over a gas burner. He develops a model to determine the energy produced by the flame i
Bogdan [553]

Answer:

b

Explanation:

took the quiz

4 0
3 years ago
Which of the following elements has 3 electrons in the outermost d orbital?
Nina [5.8K]

Answer:

A

Explanation:

Element A has 3 electrons in outermost shell so its valency is 3. It will loose 3 electrons to attain stability, as loss of 3 electrons is easier than gain of 5 electrons.

Valency of B is −2 as it will gain 2 electrons to attain stability and combine with other atom.

Valency of A⟶+3

Valency of B⟶−2

(Refer to Image)

Cross multiply valency of A and B

∴A2B3 compound will be formed.

3 0
3 years ago
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