The volume of hydrogen which is required to produce 11.21 of water vapour at STP equals
c)44.8L
A)68.2L
b)11.2L
d)22.4L

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Why is silver chloride is an ionic compound

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains