Watch the video showing series and parallel circuits with two light bulbs. Read over your class notes then try the quiz. Make sure you click the submit button when you finish
The end of year exams are looming. It is important that you finish the year strongly and don’t switch off early. Read through the notes and watch the videos on acids and bases before attempting the questions at the end
We have studied the reactions of acids with:
We have used word equations to produce fully balanced chemical equations in three steps. For a little more information on this process have a look at this post about the space shuttle being blasted into orbit on the back of a huge pop test.
the basic word equations we use are:
acid + base —–> salt + water
acid + metal —–> salt + hydrogen
Acid + carbonate —–> salt + carbon dioxide + water
Use these word equations to answer the questions below.
Watch each video then attempt the following:
- record any observations made during the reaction
- Explain how the observations for each reaction relates to the species involved
- Write balanced half and overall reactions
Hand in your work tomorrow for checking. At the very least you should be able to complete the observations
(1) A redox reaction between copper metal and 50% nitric acid containing nitrate ions
(2) A redox reaction between chlorine and and iron(II) ions
(3)Redox reaction between dichromate ions and sulphite ions.
(4) A redox reaction between chlorine and iodide ions
How to prepare for the end of unit test
The end of unit test in Genetics will be on Monday (10TM) or Tuesday (10BC). Work through the tutorials at your own pace stopping the video to answer questions before moving on to view the correct answers Make sure that you ask about any difficulties you experience during your study. You will need to prepare thoroughly to achieve the best result. This topic contains a lot of material.