After being thoroughly stirred at 10.°c, which mixture is heterogenous? (1) 25.0 g of kcl and 100. g of h2o
(2) 25.0 g of kno3 and 100. g of h2o
(3) 25.0 g of nacl and 100. g of h2o
(4) 25.0 g of nano3 and 100. g of h2o

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients