mass of crucible alone = 10.5 g mass of crucible + magnesium ribbon = 11.7 g mass of crucible and contents after heating = 13.3 g calculate the mass of magnesium that was burned calculate the mass of...
if you heat zinc in a clay pot it reacts with the oxygen in the air will the mass of material in the pot go up or down or stay the same, if 8g or zinc reacts with 2 g of oxygen what mass of product...
2 cyclists go round a track one completes 16 circuits per hour the other 10 circuits per hour.if they both simultaneously start from the same point how long will it be before they are next exactly...
i`m finishing this quiz off for mother in law and these are the ones i`m stuck on i have googled then but no luck so here i am at the ansa bank this is from the mcmillan quiz an its no 96 connections...
which two word french term is the name of a character that is equivalent to the english mr punch,and was formerly the name of a theatre in paris,the term is now applied to a sensational and horrific...
which one word of 10 letters is the name is given to a type of printing head in a printing head in a computer printer or typewriter,which consists of a small disc made up of many spokes,each carrying...
