##### Y10R - UNIT 4 AND 5 BINGO

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1

What is the formula for hydrogen peroxide and why doesn't it simplify when finished?

Formula: H_{2}0

You can't simplify the formula as they are both non-metal compounds.

2

Based on the formula we did in class, invert the formula sodium chlorite

Na^{1+} Cl_{2 }There should be a minus at the top of
the 2

the minus passes to the sodium living it as Na and the sodiums
positive ion passes it to the Cl_{2}, making the end formula
as: NaCl_{2}

3

Balance the equation: Cu + S --- Cu_{2}S --- = an arrow

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