Experimental work (5) Answers

IB Chemistry: Experimental work (5) Answers

Answers to Experimental work Question 5(b) Initially there will be a colourless liquid. When the MnO2 is added the black solid will be dispersed throughout the liquid and the liquid will effervesce as gas is evolved. The effervescence will decrease as the reaction proceeds and when the reaction is complete the MnO2 will settle as a black precipitate on the bottom of the flask leaving the clear solution above. [2]


To access the entire contents of this site, you need to log in or subscribe to it..

Click the free stuff button on the home page to access free pages or check the blog (which is also free).

All materials on this website are for the exclusive use of teachers and students at subscribing schools for the period of their subscription. Any unauthorised copying or posting of materials on other websites is an infringement of our copyright and could result in your account being blocked and legal action being taken against you.