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.
How much does a Tesla cost? The current Tesla car line (Roadster, Model S, Model X) ranges in price from $68,000 to $138,800 before tax incentives for electric vehicles. However, the cost of Teslaâs new Model 3 (currently being rolled out this year) could be as low as $35,000. How much does a Tesla Model S cost? When wondering what the Model S will cost you, the answer depends on on the model you buy and the tax credits available. The Tesla Model S (pictured above) comes at a starting price of $68,000 in 2018, $3,000 less than a few years ago.