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Chemistry

Asked by nessie_butterfly about 1 year ago, 2 answers.

What are the chemical reactoins for:

1) bread turning brown when making toast
2)ice meltin
3)pink cobalt carbonate turning balck when heated.
4)petrol evaporation
5)producing sawdust when cutting wood

Please help! Xp

Answered by lolalovesmuse on Nov 19, 2008, 03:21PM
6 answers

I'm pretty sure 1 2 and 5 are all physical changes, or changes of state, actually, they might all by physical changes...

Shark Atack Answered by funadvice on Nov 24, 2008, 07:12PM
53985 answers

2. physical change
I don't know the rest! my science teacher is going to b very mad at me lol

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