Hydronium ion, H3O+, is what gives a low pH to an aqueous solution. Hydronium ion is made when an acid donates a hydrogen ion to a water molecule.    Hydroxide ion, OH- â¦ , gives a higher pH to an aqueous solution. Hydroxide ions are found in bases; a base donates hydroxide ions to water.   Combining H3O+ + OH-makes 2 H2O.he hydronium ion is a polyatomic ion that forms when an acid releases a proton (H+) to a water molecule.
For the most part, the media seems to grasp the key features of electric-car maker Tesla Motors' (NASDAQ:TSLA) new Model X -- at least all features except for one critical element: price. Most media outlets are still asserting the Model X will start at $132,000. But this figure is off by quite a bit.
Tesla's much anticipated Tesla Model X won't be out until later this month, but the buzz among eager buyers is building. Among the talking points: Its expected cost -- a cool $132,000, or nearly 80% more than cheapest version of the Model S. Tesla is due to start deliveries of the SUV with falcon wing door within weeks, and it has started sending out details to people who have put down a $5,000 reservation fee.