Which of the following are examples of compounds?
CO2
H2O
С
Au

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

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