what are acids and bases ? give example
Answers
ACID DEFINATION
A Liquid substance that can dissolve metal and may burn your skin or clothes. Acids have a pH value of less than 7.
An Acid is a molecule or ion capable of donating a proton, or, alternatively, capable of forming a covalent bond with an electron pair.
The first category of acids are the proton donors, or Brønsted–Lowry acids.
An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons.
The word acid comes from the Latin words acidus or acere, which mean "sour," since one of the characteristics of acids in water is a sour taste.
BASES DEFINITION
The Lowest part of something, especially the part on which it stands or at which it is fixed or connected to something.
A base is a substance that can neutralize the acid by reacting with hydrogen ions.
Most bases are minerals that react with acids to form water and salts.
Bases include the oxides, hydroxides and carbonates of metals.
The soluble bases are called alkalis.Bases are defined as proton (H+) acceptors.
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Answer:
ACID is defined as ---
----> substance which is sour in taste.
-----> substance which turn blue Litmus Paper into red .
------> substance that react with base to form salt and water ( neutralization reaction )
------> substances which is good conductor of electricity due to movement of ions in aqueous solution .
------> substance which give H+ Ion or Proton in an aqueous solution.
(by Arrhenius)
------> substance which give H+ ions by electrolytic decomposition (by brownsted).
-------> substance which donates proton (by brownsted)
---------> For example HCl, HNO3
BASE is defined as ---
-----> substance which is bitter in taste substance which turns red litmus paper into blue.
------> substance which react with acid to form salt and water .
-------> substance which is good conductor of electricity due to moments of iron in an aqueous solution.
------> substance which gives OH- ion in an aqueous solution .
-----> substance which accept Proton or H+ ion.
------> For example -
NaOH, KOH, LiOH,
Mg(OH)2,Ca(OH)2