Chemistry - Acids Bases and salts - question and ans
Terms
undefined, object
copy deck
-
Name and formulae of compunds which will undergo the following :
An acid which reacts with magnesium oxide to form magnesium chloride -
Hydrochloric acid
HCl -
Name and formulae of compunds which will undergo the following :
A base whic reacts with sulphuric acid to frm copper sulphate -
copper oxide
CuO -
Explain
Bee stings are often treated with ammonium hydroxide - Bee stings are acidic and they can be neutralised by treating it with ammonium hydroxide and even baking powder.
-
Explain
Wasp stings are often treated with a weak vinegar solution - Wasp stings are alkaline and they can be neutralised with a weak vinegar solution.
-
Name and formulae of compunds which will undergo the following :
The product formed when calcium oxide reacts with water -
CaO + H20 = Ca(OH)2
CalciumHydroxide -
Name and formulae of compunds which will undergo the following :
A substance that turns litmus blue -
Alkaline substance
Calcium Hydroxide Ca(OH)2 -
Name and formulae of compunds which will undergo the following :
A salt formed when sodium hydroxide reacts with nitric acid - NaOH + HNO3 = NaNO3 + H20
-
Name and formulae of compunds which will undergo the following :
An oxide which dissolves in water to form sulphuric acid -
SO3 + H2O - H2SO4
Sulphur trioxide -
Name and formulae of compunds which will undergo the following :
A white salt that turns blue in the presence of moisture -
White anhydrous copper sulphate turn blue and becomes hydrated copper sulphate
CUSO4 + 5H20 = CuSO4.5H2O -
Name and formulae of compunds which will undergo the following :
An acid salt used in baking powder t obtain carbon dioxide -
Baking powder is made of
sodium bicarbonate NaHCO3
and tartaric acid
When the baking powder is wet, the acid reacts with bicarbonate releasing Carbon Dioxide. -
Name and formulae of compunds which will undergo the following :
A normal salt of sodium that give CArbon Dioxide when it reacts with an acid -
Sodium Carbonate + HCl = Sodium Chloride + Water + carbon dioxide
Na2CO3 + 2HCl = 2NaCl + H2O + CO2 -
Name and formulae of compunds which will undergo the following :
A metal that reacts with hydrochloric acide to form a salt - Mg + 2HCL = MgCl2 + H2