2015 Newest Bluetooth 4.0 Wireless Stereo Earbuds with Noise Cancellation Sports Earphones Headphones, Say Yes or No to pick or reject call, Support 5 Languages Voice Prompt Headsets with Voice Control Function.(Blue) This item at this price, sold by Amazon.com, is currently reserved exclusively for Prime members.
When the reactants are heated, the average kinetic energy of the molecules increases. This means that more molecules are moving faster and hitting each other with more energy. If more molecules hit each other with enough energy to react, then the rate of the reaction increases.
Van't Hoff: speed of chemical reaction increases 2.5 times with each rise of temperature of 10 degrees C. e.g. silica more soluble at higher temperature. Due to high precipitation, there is abundant soil moisture for chemical reaction to take place, allowing solution to happen. e.g. halite and calcite.