Since Uber's launch, several other companies have copied its business model, a trend that has come to be referred to as Uberification. Uber was founded as UberCab by Travis Kalanick and Garrett Camp in 2009 and the app was released the following June. Beginning in 2012, Uber expanded internationally.In 2014, it experimented with carpooling features and made other updates.n some cities, if the Uber car is travelling at a speed greater than 11 mph (18 km/h), the price is calculated on a distance basis, otherwise, the price is calculated on a time basis. At the end of a ride, the complete fare is automatically billed to the customer's credit card.
1 How are they formed? a hydrogen bond is formed when a charged part of a molecule having polar covalent bonds forms an electrostatic (charge, as in positive attracted to negative) interaction with a substance of opposite charge. Molecules that have nonpolar covalent bonds donot form hydrogen bonds.  Strenght.
start. 2.8 Covalent bonds join atoms into molecules through electron sharing The second kind of strong chemical bond is the covalent bond, in which two atoms share one or more pairs of outer-shell electrons. Two or more atoms held together by covalent bonds form a molecule. For example, a covalent bond connects two hydrogen atoms in a molecule of the gas H2. Table 2.8 shows four ways to represent this molecule. The symbol H2, called the molecular formula, tells you that the molecule consists of two atoms of hydrogen.