How many mL of a 3.0M HCl solution do you need to dilute and prepare a 75.0 L of 0.050M solution of HCI?

The first element on the periodic table of elements is carbon. a. true b. false

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.