mass number (top number) is the total number of protons and neutrons. The atomic number (bottom) is the number of protons.
2 of 5
Describe diffusion experiment with potassium and water.
potassium manganate is bright purple, take beaker of water, put potassium manganate at bottom, the purple colour slowly spreads to whole beaker.
3 of 5
describe ammonia and hydrogen chloride experiment which shows diffusion
Ammonia gives off ammonia gas, hydrochloric acid gives off hydrogen chloride gas. Cotton wool soaked in each solution at either side of closed test tube. They react to form ammonium chloride (white ring).
4 of 5
Where does the ring of ammonia form and why?
nearer the hydrochloric acid side because the particles of ammonia are smaller and lighter.
5 of 5
Other cards in this set
Card 2
Front
whats the mass and atomic number?
Back
mass number (top number) is the total number of protons and neutrons. The atomic number (bottom) is the number of protons.
Card 3
Front
Describe diffusion experiment with potassium and water.
Back
Card 4
Front
describe ammonia and hydrogen chloride experiment which shows diffusion
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