If salt and sugar are dissolved in water together, and the water is evaporated, they will be found on the bottom of the container. this shows that - a. salt and sugar reacted chemically. b. evaporation is a physical process. c. dissolving and evaporation are physical processes. d. salt and sugar are exactly the same except for how they taste.

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.