5.5 Salts From Insoluble Bases
No description yet. This curated deck is ready for daily study.
Card preview (19)
What is the difference between alkali and bases?
• bases are compounds that can neutralise acids (they have a pH more than 7) • an alkali is a type of base that are soluble in water
Examples of bases
Metal oxides, such as sodium or copper oxide
Neutralisation def
The chemical reaction of an acid with a base in which a salt and water are formed.
What are salts made up of and where do the positive ions come from
• Positive metal ions and and a negative ion from an acid • +ve ions come from a metal, a base or a carbonate
Do ionic compounds have an overall charge
No
What is the charge on group 1 ions
+1
What is the charge on group 2 metal ions
+2
What is the charge of an aluminium ion
+3
What is the charge on an ammonium ion
+1, NH4+
What is the charge of transition metals
• variable • given by roman numerals • eg copper II = Cu2+
What is the charge on group 7 ions
-1
What is the charge of nitrate ions
-1
What is the charge on sulphate ions
-2
Hydrochloric acid formula
HCl
Sulphuric acid formula
H2SO4
Nitric acid formula
HNO3
Metal + acid —>
Salt + hydrogen
Metal oxide/hydroxide + acid
Salt + water
Metal carbonate + acid
Salt + water + carbon dioxide