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.
On July 13, 2016, Tesla introduced its Model X 60D, which carries a starting price tag of $74,000 before incentives, compared to the original Model X's $80,000 starting price. The Model X 60D has a 200 mi (320 km) range and can accelerate from 0 to 60 miles per hour in 6 seconds (0 to 100 km/h in 6.2 seconds), with a top speed of 130 mph (210 km/h).