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.
It's the Tesla Model 3, and it's finally been unveiled to the world. The Model 3 marks the beginning of Tesla's mass-market assault, and the first attack comes from the price. The Model 3 will be available for just $35,000 -- before federal and state tax rebates. Yes, most of you will be able to get this car for somewhere less than $35,000, even at launch. Unlike the Model X and Model S before, there won't be a pricey, premium launch edition Model 3.