Exam tips Flashcards
What is the structure of diamond like?
Giant covalent structure
What are hydrogen ions so why do they go to the negative electrode?
Positive so they attract to their opposite charge, the negative electrode
What is the point of a gas chromatogram?
To separate the substances
Why couldn’t a lump of potassium conduct electricity?
The ions can’t move
current can’t flow
needs to be molten to conduct elecy
so that the ions can move
What is the formula for ammonium sulphate? use the data sheet
(NH₄)₂SO₄
How should you answer if you don;t know what to say but understand the topic area?
Answer with lots of key words and phrases and link them together. Reread the question to see if it makes sense or fits and you’re not contradicting it or yourself. You’re likely to get at least one mark!
