Acids, Bases and Salts AS
- Created by: carys ☺
- Created on: 13-05-13 18:39
Other questions in this quiz
2. Why can water molecules become fixed in an ionic lattice?
- The addition of water molecules makes covalent bonds form that are hard to break so the water molecules are fixed in the lattice.
- Water molecules are polar. They're held in place in the lattice because they are easily attracted to the ions creating a giant ionic lattice
- Water molecules create extra intermolecular forces like hydrogen bonds that mean they are fixed in the ionic lattice
- Because the water molecules are not polar so can attract the ions and be held into place in the ionic lattice
3. What are the two main indicators for acid/alkali reactions when using a titration?
- orcein and phenolphthalein
- methylpropane and universal indicators
- methyl orange and phenolphthalein
- methyl green and universal indicator
4. Acids are
- proton donors
- a base that dissolves in water
- proton acceptors
- greater than 7 on the pH scale
5. What is the ionic equation for a metal carbonate and (HCl) acid reaction?
- CO3^2- (s) + 2H+ -> CO2 (g) + H2O (l)
- M2CO3 (s) + 2 HCl (aq) -> 2MCl (aq) + CO2 (g) + H2O (l)
- M (s) + 2H+ (aq) -> Mg2+ (aq) + H2 (g)
- OH- (aq) + H+ (aq) -> H2O (l)
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