First of all, for a reaction to occur, the colliding molecules must be oriented in exactly the correct way: they must be oriented in suitable way for the product molecule bonds to be formed. Second, the two molecules must collide with sufficient energy to overcome the activation energy of the reaction. The activation energy is defined as the minimum energy needed to initiate a chemical reaction, and it is symbolized by E a.
A:Wolverine Supply & Manufacturing Co., founded in Pittsburgh in 1903, introduced its Sunny Suzy girl toys in 1928. Various models of the Sunny Suzy electric iron, which plugged in but warmed only slightly, were first made in the early 1930s. Your Model No. 29, with its original box and tag, would sell for about $30-$50.
On March 10, 1925, the Milky Way trademark was registered in the U.S., claiming a first-use date of 1922. In 1924, the Milky Way bar was introduced nationally and sold $800,000 that year. The chocolate for the chocolate coating was supplied by Hershey's. By 1926 it came out in two flavors, chocolate nougat with milk chocolate coating, and vanilla nougat with a dark chocolate coating, each for a nickel. In June 1932, the Milky Way bar was sold as a two piece bar, but just four years later, in 1936, the chocolate and vanilla were separated. The vanilla version, with a dark chocolate coating, was called Forever Yours and it was produced until 1979.