Which of these organisms are suspected to have evolved primarily to artificial selection? a. Domestic Dogs
b. Wild Blue Jays
c. Giraffes
d. Redwood Trees

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

How many moles of gas are present if p=11 atm, v=12l, t=185k?