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the movement of particles from an area of higher concentration to an area of lower concentration. The particles move down the concentration gradient.
ionisation chamber in which single ionising events can be detected.
Ernest Rutherford carried out the famous experiment that led to the hypothesis of the nuclear...
sulfur dioxide is extremely soluble in water, forming sulfurous acid. This acid oxidises to form...
the phase change of a substance from the gas phase to the solid phase, without passing through...
heterogeneous mixture of solid particles mixed with a liquid. The solid does not dissolve in the...