It takes 42. 0 min for the concentration of a reactant in a first-order reaction to drop from 0. 45 m to 0. 32 m at 25°c. How long will it take for the reaction to be 90% complete?.

Technological solutions have good bad effects. what is one bad effect of spraying a chemical pesticide on crops

In 1999, the u. s. announced trade sanctions worth $116.8 million, targeting goods from france, germany, italy and denmark. the sanctions were in retaliation for a ban on u. s. hormone-treated beef by which organization?

Students taking a clep exam can earn between college credits, depending on the college's policies.