Acids and Bases

Question 1

what are 4 properties of Acids

Answer 1

sour taste
pH < 7
Corrosive
Litmus Indicator turns red

Question 2

what are 4 properties of Bases

Answer 2

bitter taste
pH > 7
Litmus Indicator blue
Feels slippery

Question 3

what are strong acids and weak acids

Answer 3

strong - HNO3, H2SO4, HCl

weak - everything else

Question 4

what are strong bases

Answer 4

NaOH, KOH, Mg(OH)2, Ca(OH)2

metal oxidesm hydroxides

Question 5

describe how the Arrhenius theory applies to acids

Answer 5

acids contain hydrogen compounds that ionise to yield H+ in aqueous olutions

Question 6

describe how the Arrhenius theory applies to bases

Answer 6

bases are compounds that ionise to yield OH- in aqueous solution

Question 7

explain complete ionisation

Answer 7

strong acids dissolve in water (strong electrolytes), all dissolved acids convert to ions

there is one arrow because the reaction can’t be reserved

Question 8

explain partial ionisation

Answer 8

weak acids dissolve in water (weak electrolytes), convert mostly to unionised molecules

double arrow because it can be reversed