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100 000 N per square metre. A pressure of 1 N · m2 is called one pascal (Pa).
a chemical reaction between an acid and a base to form salt and water. They have opposite...
the simplest ratio of atoms of the different elements in the compound.
contains an unpaired electron on a carbon atom bonded to only one other carbon atom.
contains an unpaired electron on a carbon atom bonded to two other carbon atoms.
water droplets that combine with one another, grow too heavy to stay in the air, and fall to the...