Which quantity is equivalent to 160 grams of CaF2? A. 0.5 moles
B. 2.0 moles
C. 2.5 moles
D. 4.1 moles

b i think it’s a water wheel turning in a stream

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?