To get out the iron filings put everything in to a container and then put the magnet to the side to attract them. Pull them out of the container. Then, I don’t know how to separate the sand and salt. Maybe evaporate the salt? I joke you can figure it out. Best of luck! :)
<span><span>Number of Protons-19 </span><span>Number of Neutrons-20 </span><span>Number of Electrons-<span>19</span></span></span>
Answer:
B. chemical
Explanation:
Chemical change cannot go back to its original form
the gas it has in it. it’s moving because of the gas
'cause alphe-particle which was +ve charge, get repulsion from the atom, so he deducted that.......
