Which coefficients in the order given balance the reaction? Br2 +
PA
-
PBr3 :
O A. 6, 1,4
B. 6, 1,2
O C. 3, 1,4
O D. 2, 2, 2

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?