Explain the difference between (a) random and systematic error.
(b) constant and proportional error.
(c) absolute and relative error.
(d) mean and median.

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

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Draw the lewis dot structure for each of the following polyatomic ions