Question 10
Question 10 of 40
Question image for Q10
Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
6. Electrochemistry
6.1. Redox processes: electron tran...

use changes in oxidation numbers to help balance chemical equations

2. Atoms, molecules and s...
2.3. Formulas

(a) write and construct equations (which should be balanced), including ionic equations (which should not include spectator ions) (b) use appropriate state symbols in equations