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The reactivity of group 1 metals increases as you go down the group. This is due the number of electron shells increasing, leading to the distance between the outermost electron and the nucleus. The incre...
Covalent bond (sharing a pair of elections between two non metal atoms)O = C = O
As carbon is in group 4 of the periodic table it has 4 electrons that it can share with other atoms to form covalent bonds. In the graphite structure, only 3 of these electrons are used for forming covale...
Given the equation for the reaction:CuO(s) + H2SO4(aq)-------> CuSO4(aq) + H2O(l) and the relative formula mass of the copper sulfate crystals Mr=249.5 and the relative atomic masses of O=16 and Cu=63....
Use the equation:Moles = Mass ÷ Relative massFor example: How many moles are there in 10g of CaCO3 ? ( to 3 significant figures)Find the relative mass of CaCO...
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