A. lithium iodide and bromine react to produce lithium bromide and iodine.
__lii+__br2--> __libr+__i2
b. cesium nitrate and potassium chloride react to produce calcium chloride and potassium nitrate.
__csno3+__kci--> __csc1+__kno3

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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.

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