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a chemical reaction in which a solid product forms from aqueous (aq) reactants.
100 000 N per square metre. A pressure of 1 N · m2 is called one pascal (Pa).
Prilling is a process by which ammonium nitrate is solidified from individual molten drops.
non-rechargeable cells, such as the zinc-carbon torch cell.
Primary cells are non-rechargeable cells, such as a zinc-carbon torch cell. Secondary cells are...
contains an unpaired electron on a carbon atom bonded to only one other carbon atom.
a new species or substance that exists after a chemical reaction has occurred. This excludes un-...
a substance that improves the efficiency of a catalyst is called a promoter.