When a chemical reaction has a free energy calculated to be the minimum amount the system is said to have an entropy value of zero
have achieved equilibrium
have occured at 25 degrees C
be a complete reaction

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397