Copper iii oxide reacts with sodium hydroxide to produce copper iii hydroxide and sodium oxide in a double replacement reaction. the balanced chemical reaction coefficient for the sodium hydroxide is

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Anybody wanna ? (picture included? )