A. An antacid medicine reacting with stomach acid.B.an old garden rake that is rustingC. sawdust that is piling up under a table saw C.a cigarette being smoked
2007-03-05 07:36:15 · 6 answers · asked by SAM 1 in Science & Mathematics ➔ Chemistry
All but C are chemical changes. C is the same substance just changing in amount, not chemical properties like all the others.
2007-03-05 07:41:11 · answer #1 · answered by Kurt 2 · 0⤊ 0⤋
Wood=>Sawdust is a physical reaction. You aren't changing the composition of the matter, merely its form.
2007-03-05 15:40:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
sawdust that is piling up under a table saw
2007-03-05 16:17:11 · answer #3 · answered by Preeya 5 · 0⤊ 0⤋
Saw dust. The chemical composition isn't changing, as it is in the others.
2007-03-05 15:40:28 · answer #4 · answered by Professor Beatz 6 · 0⤊ 0⤋
Saw dust, as it is not reacting to create a new species.
2007-03-05 15:57:11 · answer #5 · answered by salsablaeu 2 · 0⤊ 0⤋
I'm pretty sure it would be the saw dust.
2007-03-05 15:47:00 · answer #6 · answered by Jackie 2 · 0⤊ 0⤋