For which applications would you choose a liquid over a gas or solid? washing clothes
linking a brake pedal to the brake pads at the wheels of a car
deodorizing a room
carving a sculpture
dissolving sugar
painting a wall
making a gear for a machine

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

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.

Which three statements represent the benefits of performing experiments using computer simulations?