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Sorry that I can’t be with you today. Here is the work for your cover lesson:

Hello,

1. Use the following data to complete the conclusion table and two evaluation questions from Core Practical 11. Lab books are in the cupboard on the left side of the whiteboard if you want to use them.

Solid

Observations

Mass of filter paper in grams

Mass of filter paper and dry residue in g

Copper (II) oxide

Small bubbles, black solid remains

4.3

4.9

Manganese (IV) oxide

Rapid and large bubbles, steam, tube gets very hot

4.2

4.7

Copper

No visible reaction

4.3

4.8

Potassium iodide

Rapid bubbles, tube gets warm, colourless to orange

4.2

4.2

1. Answer the practice exam questions on catalysts in OneNote. They're in the practice questions folder, in the section called catalysts.
2. Mark temperature questions (completed for homework) and catalyst questions. There are hard copies of the mark schemes on the teacher’s bench at the front of the lab. Please ensure you have tried to answer every question before you mark them. Use a different colour to mark and show corrections, then put your total at the top of the page on OneNote.
3. When you have completed this, you can do the Chemistry Christmas Crossword. This is in the practice questions folder on OneNote.

Extension: If you finish all this work, please go to phet.colorado.edu on your iPad. Do some balancing equation practice using the balancing equations simulation in the Chemistry simulation section.