Uploaded by larisaoosthuizen1

Acids, bases and salts - Revision Worksheet

advertisement
Grade 11 Chemistry
Acids, Bases & Salts
Quick Revision Worksheet
Name:_______________________
1) In terms of proton transfer, an acid is a ____________
_____________ and a base a
_____________ __________________
2) An alkali is a __________________ ____________
[2]
[1]
3) Common bases are: ____________ ______________
____________ __________________
____________ __________________
________________
[4]
4) Alkalis are most commonly the ____________________ of group ___ and ___ metals
[2]
5) Acids release _____ in solution and alkalis release ______ in solution
[2]
6) Acids have a pH _____________ 7 and alkalis have a pH ______________ 7
[2]
7) A neutralisation reaction follows the common equation of:
____________ + ____________  ____________ + ______________
[1]
8) Litmus is/turns ____________ in acid and ____________ in alkali
Methyl orange indicator is/turns ____________ in acid and ____________ in alkali
Phenolphthalein is/turns ___________________ in acid and ____________ in alkali
[6]
9) ________________ indicator shows the exact strength/pH value of an acid/alkali solution
[1]
10) pH is a measure of the ______________________________________________________
[1]
11) The ________________ the pH, the ________________ the H+ concentration and the
_______________ the OH- concentration
[3]
12) Strong acids have a pH range of ________ and weak acids a pH range of ________
Strong alkalis have a pH range of ________ and weak alkalis a pH range of ________
[4]
13) Acid + metal  ____________ + ______________
Acid + metal oxide  ____________ + ______________
Acid + metal hydroxide  ____________ + ______________
Acid + metal carbonate  ____________ + ______________ + _____________________
[4]
14) The salt formed in a neutralisation reaction is named according to the ____________ from the
base and the ______________ from the acid
[2]
15) The strength of an acid or alkali depends on its _________________________________________
and therefore, strong acids/alkalis dissociate (ionise) ________________________ in solution
while weak acids/alkalis dissociate ______________________________ in solution
[3]
16) The dissociation of weak acids or alkalis are ____________________ reactions with the
equilibrium lying to the ___________
[2]
17) Concentration is the amount/number of _______________ in ______________
18) A
concentrated
solution
of
either
an
acid
or
an
alkali
[2]
contains
a
contains
a
________________________________________________ per 1 dm3 of solution
A
dilute
solution
of
either
an
acid
or
an
alkali
________________________________________________ per 1 dm3 of solution
[4]
[Total: 46]
Download