6) A student performed an analysis of a sample for its calcium content and got the following results: 14.92%, 14.91%, 14.88%, 14.91%
The actual amount of calcium in the sample is 15.70%. What conclusions can you draw about the accuracy and
precision of these results?

If soap hits the floor, is the soap dirty or the floor

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule