when mixing a strip of magnesium and hydrochloric acid the magnesium makes the acid bubble at the top but stays the same color. is it a physical or chemical change?
2006-08-24 12:14:46 · 7 answers · asked by Isa 2 in Education & Reference ➔ Homework Help
It's chemical change because the strip didn't change to liquid or gas which would constitute it as a physical change
2006-08-24 12:37:48 · answer #1 · answered by carmen3111 4 · 0⤊ 0⤋
It is definitely a chemical change.
I undersand your confusion though - isn't it just changing from a solid/liquid to gas?
Yes, it is, but actually that gas is not the vaporous form of either component, but a new compound. You can recognize that a chemical change will usually take place between a volatile nonmetal and a metal. (That is, HCL and Magnesium.)
2006-08-24 19:17:34 · answer #2 · answered by mhongreen 3 · 0⤊ 0⤋
Chemical. You are making magnesium chloride salt and hydrogen, which is what's bubbling away.
2006-08-24 19:19:25 · answer #3 · answered by mityaj 3 · 0⤊ 0⤋
Chemical change
2006-08-24 19:23:38 · answer #4 · answered by MollyMAM 6 · 0⤊ 0⤋
i think physical b/c no new substances is made
it is just making a liquid turn to gas and you can still separate the 2
2006-08-24 19:50:58 · answer #5 · answered by allmaddenmister 2 · 0⤊ 0⤋
chemical
2006-08-24 19:19:07 · answer #6 · answered by Cassie 3 · 0⤊ 0⤋
i think its physical...yeh...
2006-08-24 19:19:17 · answer #7 · answered by Dragonfly :) 4 · 0⤊ 0⤋