Zinc forms many different salts including zinc sulfate, zinc chloride and zinc fluoride.
(a)
People who have a zinc deficiency can take hydrated zinc sulfate
(ZnSO..XH2O) as a dietary supplement.
A student heated 4.38 g of hydrated zinc sulfate and obtained 2.46 g of
anhydrous zinc sulfate.
Use these data to calculate the value of the integer x in ZnSO. XH2O
Show your working.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.