Reactions occur when 2 or more atoms or molecules combine to form a larger, more complex molecule. this can occur through the loss if water and therefore can be called

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

37.0 °c = °f (human body normal temperature)

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