science KO 12 Flashcards
HCl
Hydrochloric acid
H₂SO₄
Sulfuric acid
HNO₃
Nitric acid
NaOH
Sodium hydroxide (alkali)
KOH
Potassium hydroxide (alkali)
Strong acid
Fully dissociate all the molecules break apart into H+ and other part
Dissociates
Molecules break apart into H+ and other part
Weak acid
Partially dissociate only some the molecules break apart into H+ and other parts
Concentration
The number of particles in a given volume
Concentrated solution
A solution that contains a large amount of solute in the solution
Dilute solution
A solution that contains a large amount of solute in the solution
neutralisation
Reaction between an acid and an alkali to produce salt and water
Salt
the compound Of metal and nonmetal
neutralisation general equation
Acid plus alkali -> salt + water
pH Scale
A numbered scale from one to 14 acids have a pH of 0 to 6.9 neutral pH not acid or alkali is pH 7.0 . Alkalis have a pH of 7.1 to 14.
Acid
Substances with a pH between zero and 6
Alkali
Opposite of acid substances with a pH of eight to fourteen when alkali is a base to dissolved in water
Base
A substance that can neutralise an acid
Litmus paper
A special type of paper which changes colour blue litmus paper turns red in acid red litmus paper turns blue in alkali
Universal indicator
Paper or liquid which changes colour depending on the pH
