The reaction of phosphoric acid with calcium contained in milk gives rise to a precipitate 3Ca + 2H3PO4 /// Ca3(PO4)2 + 3H2
months ago by anri1
in category: science Comments (1)
GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you are?
months ago by BananaStand
in category: interesting Comments (7)