Consider your (EXPT # 4) "Chemical Reactions. ": Aluminum will react with bromine to form aluminum bromide (used as an acid catalyst in organic syntl Al(s)+Br2()Al Br6(S) [unbalanced] How many moles of Al are needed to form 2.43 mol of Al Br6? 4. 1

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.