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(Talk about needing to memorise colour tests for base metals and tests for Halides) The compound is KI (potassium Iodide) because potassium compounds burn with a lilac flame, and production a pale yellow ...
speed = distance/time
2x - 9 > 3, 2x > 12, x > 6
This was a GCSE question in 2015. There are n sweets in a bag. 6 of them are orange, the rest are yellow. Hanna takes a random sweet from the bag and eats it. She then takes another random sweet and eats ...
This can include: advertising, complementary goods, amount of substitutes avaible, income and quality. Just to name a few.
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