Acids Alkalis Bases And Salts Flashcards
(25 cards)
What’s the formula for hydrochloric acid
HCL
What is the formula for Sulphuric acid
H2SO4
What’s the formula for Nitric acid
HNO3
What’s a base
A substance that will neutralise an acid but does. It dissolve in water
Acid+metal>
Salt +hydrogen
Acid+base>
Salt+water
What’s the name of word used to describe a reaction with gas
Effervescence
Hydrochloric acid+ zinc>
Zinc chloride+hydrogen
Hydrochloric acid+magnesium >
Magnesium chloride + hydrogen
Sulphuric acid + zinc>
Zinc sulphate +hydrogen
What’s an acid
A substance that has a ph of under 7 and produces hydrogen ions in solution
What’s an alkali
A substance with a ph above 7 that produces OH- ions in solution
What’s a salt
Formed when hydrogen ions of an acid are replaced by metal ions or ammonium ions
Why are there only a few common alkalis
Because most hydroxides are insoluble
Acid+ carbonate>
Salt+water+carbon dioxide
Acid+alkali>
Salt+water
Hydrochloric acid+ sodium carbonate>
Sodium chloride+ carbon dioxide + water
Sulphuric acid + sodium hydroxide>
Sodium sulphate + water
When creating a sulphate why do we put on excess salt?
To ensure that all the acid has been neutralised
How do you know when the reaction has stopped
There is no more effervescence
When there is no solid how do you obtain a solution
Titration using a bursts to measure the exact amount of acid added to the alkali
Calcium + sulphuric acid>
Calcium sulphate+hydrogen
Balance
C2H6+O2>CO2+H2O
2C2H6+7O2>4CO2+6H2O
Give one example of an acid
Hydrochloric acid/nitro can/sulphuric
