- Calculate the energy (Q) 4.18 needed to boil 50.0 g of water at room temperature (22°C) to its boiling point of 100 °C. Use the table to the right for a list of the specific heat values

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these