In a separate experiment nitric acid was added to magnesium. What is the name of the gas produced?

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Which property of water causes water drops to bead on a freshly waxed car?

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