An example of a single replacement reactions is the polishing of silverware by soaking with aluminum. silver reacts with sulfur, s, to become ag2s. aluminum replaces the silver, ag, in this reaction. which of these is the correct balanced chemical reaction for this? a) ag + al2s →ag + al2s3 b) al + ag2s → ag + al2s3 c) 2al + 3ag2s →6ag + al2s3 d) 2ag + 3al2s →6ag + al2s3

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.