Measure and record the masses of all metal strips you set out in front of the test tubes ( magnesium nitrate) ( zinc nitrate) ( copper nitrate) (magnesium ribbon) ( zinc strip ) (copper strip )

observe and record the appearances of the metal strips and the solutions in the test tubes

How does chemistry affect our world? a. chemicals makes our world more polluted. b. chemicals keeps us healthy. c. chemicals can or hurt our world. d. chemicals make our world safe to live in.

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves