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It isnt incredibly high as Math Ext2 has very high scaling. My teacher told me that you should aim to complete 5/8 of the exam in order to gain a band 5 equivalent. You do not need to ace the exam to get high. Examiners hardly ever receive any test papers that have been completed. So aim for...

I said Metallurgical Chemist who studys the effect and presence of metal and its ions in the human body through Atomic Absorption Spectroscopy. Would that be ok?

REASON FOR NOT DOING FLAME TEST: The reason for not conducting the flame test is the mixing of the cation and anions. Normally when conducting a flame test you use a variety of metallic ions which have a common salt base such as Cl. This allows you to distinguish between the metals as the Cl...

#1 Sodium Carbonate #2 HCl #3 Lead Nitrate #4 Barium Nitrate All you had to know was the Sodium Carbonate and HCl made the CO2 bubbles All Group 1 Nitrates are Soluble (therefore Barium = no reaction) Lead Nitrate forms a precipitate So from those properties you can deduce and...