2006-10-01 08:05:43 · 5 answers · asked by lolo l 1 in Science & Mathematics ➔ Other - Science
Chalk is brittle, Iron is hard and malleable.
Chalk has a very different density than Iron.
Iron is magnetic, chalk is not.
Iron will oxidize in air, chalk will not.
Iron will conduct an electric current, chalk will not.
When reacted with Hydrochloric acid,
chalk will form Calcium Chloride and give off Carbon Dioxide bubbles,
Iron will form Iron Chloride, yielding no bubbles.
2006-10-01 08:16:55 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
You mean, if you were blind or something...? They could probably be easily distinguished, visually. Chalk is white, while steel is shiny and metallic, or rusty.
The nail would be attracted by a magnet, while the chalk would not be. The chalk would be soft and crumble easily while the metal would bend. If dragged across a chalkboard, the chalk would leave a trace while the nail might only scratch it.
2006-10-01 15:31:30 · answer #2 · answered by cdf-rom 7 · 0⤊ 0⤋
Chalk is white, Iron is metallic in colour
Chalk (dry) is an electrical insulator - iron conducts
Chalk is a pretty good thermal insulator - Iron conducts heat well
Chalk is not magnetic - Iron is magnetic
Chalk (CaCO3) dissolves fast in hydrochoric acid (HCl) - Iron takes ages
2006-10-01 15:15:45 · answer #3 · answered by Armitage S 1 · 0⤊ 0⤋
Hit them with a hammer, the chalk will be reduced to powder and the iron nail will not.
2006-10-01 15:07:36 · answer #4 · answered by spongeworthy_us 6 · 0⤊ 0⤋
put both into an acidic solution
the chalk will dissolve faster, i think
2006-10-01 15:09:16 · answer #5 · answered by Vanna 2 · 0⤊ 0⤋