How can you change a magnesium ribbon into an alkali?explain with chemical reaction

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? ?

answer carbon and three oxygen atoms;

50.23 i believe is correct but don't quote me on that.