A55.0%/45.0% by volume propane/n-butane mixture is cooled from 343°c to 191°c. find the change in ethalpy of this mixture by following the steps below. assume ideal behavior. a) what is the average molar mass of the mixture?

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g