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 has finally slapped a price on its long-awaited Model X. Before delivery charges, it'll cost buyers $80,000, says Teslaâwhich is about $5,000 more than the cheapest version of the older Model S. The Model X is an SUV, compared to the lighter Model S sedan, so it has a slightly shorter range. The Model X can travel 220 miles per charge, compared to 240 miles.