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Over [174]
3 years ago
9

Define symbole and valeny.​

Chemistry
1 answer:
Alexxx [7]3 years ago
3 0

Answer:

Chemical symbol

This is used to identify an element without having to write the full name and as such is a designation for the element. It is used in chemical reactions and is usually either one or two letters. Some symbols are, Iron - Fe, Hydrogen - H and Oxygen - O.

Valency

This refers to the capacity of an element to combine with another to form a compound. It is measured by the number of electrons that an atom of an element gains, looses or shares when a chemical reaction involving it takes place.

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Question 39 (1 point)
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volume = 2128L

Explanation:

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5 0
3 years ago
A sample of chlorine gas occupies 350.0 ml when its pressure is 735 mm hg. how many milliliters will is occupy when its pressure
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The  Milliliters  that   occupy   when   its  pressure  is  755  mmhg  is   calculated   using Bolyes  law  fomula
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P2=  755  mm hg
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from  the  formula  above  V2 is  therefore=  p1V1/P2
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4 0
4 years ago
How many moles of Na2CO3 are in 100.0ml of a 2.0M solution?
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Suppose the molarity was listed as 2.0 M (two sig figs). How to display the answer? Like this:

20. mol

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