1. When inner electrons get in the way of the nuclear charge, weakening the attraction, this is called...?
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Other questions in this quiz
2. Tetsing for negative ions: how do you test for carbonates?
- Add a dilute acid, pass the gas produced through limewater- if turns cloudy then yes
- Add sodium hydroxide, if is dissolves then yes
- Add nitric acid, if hydrogen produced(squeaky pop test) then yes
- Evaporate the water, if scale produce then yes
3. Methylated spirit/Meths is ethanol with other chemicals added. It is posionous but colourless, so how do we make sure people don't drink it?
- Red/orange dye
- Purply-blue dye
- A strong burnt, smell
- A plasticy smell
4. Which of these is NOT a property of transition metals?
- The ions can form colourful compounds
- Dense, strong and shiny
- More reactive than Group 1 metals
- Good conductors of heat and electricity
5. If you add sodium hydroxide when testing for metal ions, a white precipitate forms, but then redissolves, what ion is present?
- Copper 2+
- Aluminium 3+
- Ammonia 1-
- Calcium 2+
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