In which case is the polyatomic ionnamed incorrectly?A NH 4 ammoniumB SO 32 sulfateC CO 32 carbonateD NO 2 nitrite
Experimental error: Precision: the degree of agreement between duplicate experiments. This is not necessarily the “best” answer. For example, you might have a balance that reads in grams too heavy and you are weighing a piece of paper (might realize), but if something larger you might not realize. You might read 10.001 10.002 10.001 (that would be very good precision), but the real answer is about 0.001 grams. So there is something more than just precision. Accuracy: the degree of agreement, which is “true” to the result. Suppose we have another balance that said 0.001 0.005 and 0.0006, same piece of paper. The Accuracy would be good, but not very precise. B: Types of error 1. Systematic: causes a shift in the measure value from the true value.