B: sand
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In which of the following is there a lattice of positive ions in a 'sea of electrons'?
Element X has the electronic structure 2,8,5. Element Y has the electronic structure 2,8,7. What is the likely formul…
A covalent bond is formed by
Which statement about both chlorine atoms and chloride ions is correct?
The equation for the reaction between calcium carbonate and hydrochloric acid is shown. CaCO3(s) + 2HCl(aq) → CaCl2(a…
The empirical formula of a liquid compound is C2H4O. To find the empirical formula, it is necessary to know the