https://padlet.com/7114150108/i46c2p3c8a2c - en-us 2017-11-05 02:16:18 UTC 2017-11-30 10:51:28 UTC hello@padlet.com 7114150108 https://padlet.com/7114150108/i46c2p3c8a2c/wish/207029632 The blue solution could be copper sulfate.
Bubbling observed during the reaction was probably due to the heat released as the reaction was vigorous.
Reddish-brown solid that remained on the aluminium cupcake liner is probably copper solid.
The reaction is a displacement reaction between a metal and a metal salt. As aluminium is more reactive than copper, it displaced copper to form aluminium sulfate and copper solid.]]> 2017-11-15 02:08:46 UTC https://padlet.com/7114150108/i46c2p3c8a2c/wish/207029632 https://padlet.com/7114150108/i46c2p3c8a2c/wish/211235514 2017-11-29 02:35:52 UTC https://padlet.com/7114150108/i46c2p3c8a2c/wish/211235514 https://padlet.com/7114150108/i46c2p3c8a2c/wish/211777423 The blue green solution turned black and there was a hole through the aluminium cupcake tray exposed to the solution. The solution may be copper (II) nitrate. The copper ions are less reactive than aluminium atoms in the tray. Aluminium atoms displaced copper ions to form the solution aluminium nitrate.  ]]> 2017-11-30 10:51:07 UTC https://padlet.com/7114150108/i46c2p3c8a2c/wish/211777423