B. Definitley Hope this helps
Rapid cooling is needed to form glass, specifically tempered glass, to make the glass stronger and safer.
Unlike regular glass which breaks when undergoing rapid cooling, tempered glass is ductile. It is not brittle and its ductility is a result of undergoing the rapid cooling process.
Through rapid cooling, tempered glass develops a core that has a large amount of tensile stress and a surface that has compressive stress. The compressive stress on the surface of the tempered glass makes it stronger than regular glass. It can also be broken but when it does, it breaks into small granular chunks that are less likely to cause injury.
A calorimeter is a device used to measure the amount of heat involved in a chemical or physical process. For example, when an exothermic reaction occurs in solution in a calorimeter, the heat produced by the reaction is absorbed by the solution, which increases its temperature.
Well the answer is 207.2. You take the lowest sig figs that you are using which would be 2500= 2 sig figs. 207.2 rounded to 2 sig figs would be 210
Answer:
a stable subatomic particle occurring in atomic nuclei,with a positive electric charge equal in magnitude to that of an electron.