Which of the following has the highest mass? A. 50.0g water
B. 50.0 moles of oxygen
C. 50.0 molecules carbon dioxide
D. 50.0 mol NaCl

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.

Ineed pls urgent 1-20 in order and fully detail step my step.