Chemistry: Acids and Alkalis Flashcards
What is an Acid?
A substance that gives out Hydrogen ions H+ in a solution…
name 4 common Acids..
a) sulphuric acid
b) nitric acid
c) ethanoic acid
d) hydrochloric acid
name 4 common bases..
a) sodium hydroxide
b) potassium hydroxide
c) calcium hydroxide
d) ammonia
What is a Base?
A substance that reacts with acids to form a salt
What is an Alkali?
A soluble base.
the formulae of sulphuric acid
H2 SO4
the formulae of nitric acid
HNO3
the formulae of ethanoic acid
CH3 COOH
the formulae of hydrochloric acid
HCL
the formulae of sodium hydroxide
NaOH
the formulae of potassium hydroxide
KOH
the formulae of calcium hydroxide
Ca(OH)2
the formulae of ammonia
NH3
What is neutralisation?
Type of chemical reaction in which acids react with a base to form a salt
What is the acid ending for hydrochloric
Chloride
What is the acid ending for sulphuric
sulphate
What is the acid ending for nitric
nitrate
What is the acid ending for ethanoic
ethanoate
What does a PH scale show?
It shows how acidic or alkaline a solution is
What is an indicator?
A substance that changes colour depending on whether it is added to acid or alkali
What does the general equation acid+ metal oxide =
Salt+ water
What is the general equation for acid + metal =
Salt+ Hydrogen
What is the test for H2 gas
Squeaky pop test Burning splint
What is the general equation for acid+ metal carbonate
Salt+ water+ Carbon dioxide
