A typical car battery contains 8.16 kg of lead. Determine the number of lead atoms in this battery

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.

How is the use of hydroelectric power related to the sun