What is the results of adding phenolphthalein in Mg+H20 solution?

0 ⤊

What is the results of adding phenolphthalein in Mg+H20 solution?

2006-11-25 19:13:43 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

4 answers

Magnesium reacts incredibly slowly with cold water, and it takes about a week to collect even a few cubic centimtres of hydrogen gas. However, if phenolphthalein is added to the water at the end of the experiment, it will turn pink. This confirms that a solution of the not very soluble magnesium hydroxide has been formed.

2006-11-25 19:40:21 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋

Mg^2+(aq)!

2006-11-25 19:31:21 · answer #2 · answered by gonpatrick21 3 · 0⤊ 0⤋

the phenolphthalein turns pink.

Mg(s) + 2H2O (l) ---> Mg(OH)2 (aq) + H2(g)

2006-11-25 19:16:54 · answer #3 · answered by Papilio paris 5 · 0⤊ 0⤋

Madness!!!!!

2006-11-25 19:15:43 · answer #4 · answered by Devo 4 · 0⤊ 2⤋