Student learning space by CHUA CHARLENE S3-05 https://padlet.com/7114150055/dfbe47tdv6rz 305 en-us 2017-10-24 12:46:45 UTC 2017-11-01 05:35:51 UTC hello@padlet.com Cupcake surprise! Part one 7114150055 https://padlet.com/7114150055/dfbe47tdv6rz/wish/202384422 See: The blue solution caused a vigorous reaction which produced effervescence and a hole in the aluminium foil.

Think: The blue solution corroded the aluminium

Wonder: How did the solution corrode the aluminium foil?]]> 2017-11-01 05:11:53 UTC https://padlet.com/7114150055/dfbe47tdv6rz/wish/202384422 Cupcake suprise! Part 2- Explanation 7114150055 https://padlet.com/7114150055/dfbe47tdv6rz/wish/202385157 Identity: CuSO4
Expalnation: Since Aluminium is more reactive than copper, it displaced copper from the CuSO4 solution. Hence, the aluminium ions formed a new compound with the sulfate ions, Aluminium sulfate, and displaced the copper (ll) ions. This causes the aluminium foil to corrode at the areas exposed to the blue solution and caused the solution to turn from blue to black.]]> 2017-11-01 05:20:03 UTC https://padlet.com/7114150055/dfbe47tdv6rz/wish/202385157