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Write the formula for each compound (the composition is given after each name): aluminum bromide (1 atom Al, 3 atoms Br)
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Write the formula for each compound (the composition is given after each name):

aluminum bromide (1 atom Al, 3 atoms Br)

User JamesR
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aluminum bromide should be written as AlBr₃ since we are told that there are 3 atoms of Br for every atom of Al.

I hope this helps. Let me know if anything is unclear.
User Shavaughn
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