[" Blister "Cu" is about: "],[[60%," Cu "],[90%," Cu "],[98%," Cu "],[,100%" Cu "]]

Blister copper is 98% copper.

Blister copper is 98% copper. (T/F)

Percentage of Cu is minimum in

1 litre is equal to (a) 1 cu. cm (b) 10 cu. cm (c) 100 cu. cm (d) 1000 cu. cm

Copper sulphide (Cus) contains 66.5 % Cu copper axide (CuO) contains 79.9% Cu and sulphur trioxide (SO_(3)) containts 40% S . Shows that these compounds obey the law of recipreocal proportions. Strategy: Elements S and O chemically combine seperately with element Cu to from Cus adn CuO . Elements S and O also chemicaly combine with each other to form SO_(3) . Find the ratio of masses of S to O combining with a given mass of Cu and also find the ratio of masses of S to O in SO_(3) .