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using open moulds to produce objects with specific shapes.
polymers are only able to form areas of crystallinity or crystalline domains, and are not...
adding aqueous HCl to a saturated solution of sodium ions and chloride ions to cause the...
mass per unit volume of a substance. The number of molecules in a particular area or a measure...
a substance that improves the efficiency of a catalyst is called a promoter.
if the equilibrium of a system is disturbed by a change in temperature, pressure or...