What is solubility, malleability and ductility

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

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.