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damilola
Questions (4)
in the laboratory, concentrated hydrogen chloride acid reacted with aluminium. hydrogen gas evolved was collected over water at
2 answers
1,301 views
150g of ice at 0 degreecelcius is mixed with 300g of water at 50 degreecelcius.calculate the temperature of the mixture.
2 answers
911 views
A vertical radio mast is supported by wires attached to its top and to points on the level ground 9m from its base. If each wire
4 answers
2,252 views
500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics
0 answers
1,093 views
