How can you tell a chemical change has happend?

a chemical change are a change in color and the formation of bubbles.

chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.

Explanation:

Change it up a little bit and your teacher will never know. :)

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.