Heat energy can be produced in many ways. which of the following sources can produce heat energy? a. the sun b. electricity c. burning wood d. all of these

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Which description best characterizes the motion of particles in a solid?