How many grams of NaOH are required to make 5.0 L of a 3.0 M NaOH stock
solution?

Which element is least likely to undergo a chemical reaction

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3