A balloon has a pressure of 1.75 atm at 20°C. What will be the new pressure of the balloon if it is put in a freezer at 0°C?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+