What is the reaction type of al+ br-aibr3

2Al + 3Br2 ===> 2AlBr3

We called these reactions simple compositions. They take 2 elements from the periodic table and make a chemical compound on the right. I think they are now called composition reactions.

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? ?