1.scientists who capture fish from depths of 1000m or more for study have to bring them to the surface in pressurized containers. why do they do this?
2.a car of mass 600 kg has four tyres each of surface area 0.005m^2. determine the pressure exerted by each tyre on the ground
3.give reasons
a.non metals general do not displace hydrogen from dilute acids
b.aluminium easily combines with oxygen but still can be used for making kitchen utensils
4.can we store ferrous sulphatebsolution in zinc container?give reasons and write the chemical equation involved
please help
this is not my HW these are my doubt's
please help
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