1. what percentage of the earths atomspheres gases is nitrogen?
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Other questions in this quiz
2. what percentage of the earths atomsphere is oxygen?
3. what happens when Alkane is added to bromine water
- goes colourless
- goes cloudy
- turns yellow
4. what charge does a proton have?
- positive charge
- no charge
- negative charge
5. what products does titanium have?
- slivery white metal and is hard
- dark and dull
- silvery white metal and is soft