Students measuring the mass of a metal block record 2.985 g, 3.051 g, 3.102 g, and 3.211 g. Which other measurement of the block's mass would be most
precise?
A. 2.804 g
B. 3.1159
C. 3.418 g
D. 3.509 g

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.

What physical property of gold makes panning a useful way to get gold from streams?

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing