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molecule where the ratio of atoms is 1 : 3. So the bond angle is 1200, for example BF3
two or more different forms or structures of the same element.
during hydrocracking a high hydrogen concentration (partial pressure) ensures that any shorter...
types of chemical âunitsâ â could be atoms, molecules, molecular fragments, simple or...
the part of polymerisation where monomers are continually added to form a longer and longer...
rechargeable cells, such as the lead acid accumulator used in motor vehicles.