Which is an example of a container filled with a pure substance? *
a glass of iced tea
a tire filled with air
a bucket of salt water
a balloon filled with helium

What does standard deviation reveal about data? a. the average of all the data points b. which of the data points is most reliable c. how spread out the data points are d. the percent error included in the data

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Explanation for basic character?