How much energy is required to heat 40g of water from -7 degrees celsius to 108 degrees celsius (lf= 335,000j/kg for ice)

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state. a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car