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The electrons are packed in singly occupied orbitals in the 3p subshell in phosphorus, however in sulfur, the 4th electron is placed into an orbital that already has an electron. Because electrons are neg...

When approaching this essay question, it is important to relate how the theme of poverty affects the character’s lives in ‘The Grapes of Wrath’ and as a consequence means they are unable to make a suffici...

barium sulfate is insoluble

cell wall, vacoule, chloroplasts 

1. heat with HCl 2) neutralise with NAHCO3 3) add benedicts soln and gently heat in a water bath 4) if the soln changes colour from blue to a brick red precipitate, then non reducing sugars were involv...