Bye ill be on tmr free points

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?