Please help I have Chemistry exam tomorrow. 3. A sample of 2g of hydrated crystals of Magnesium sulphate (MgSO4.xH2O), with
an Mr, of 246. The crystals were heated on low flame, and it was found that 1.02g
water was present in the sample. Calculate the total mass of water present in the
hydrated crystal mentioned above, and determine the value of x.​

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

0.88m hope i am correct : )

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.