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bolaji

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list and state the uses of the products obtained from the destructive distillation of coal
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by the way calcium is Ca Ca(PO^4)2 Ca=40, P=31, O=16 In BODMAS we deal with the ones in he bracket first Ca (P O^4)2 40 (31 + 16*4)2 the reason why i multiplied 16 by 4 is because it is raised to the ^4 40 (64)2 In mathematics when you have a(b) it means
x+x+33=175 x + x=175-33 the 33 became -33 because it crossed over the =sign at the back of any variable that seems to have no number is 1 1x +1x =2x 175-33=142 2x=142 but because we are looking for x not 2x we have to get rid of the coefficient which is 2

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