As water is heated by the sun, it becomes less dense and rises . what causes the decrease in the density of warming water?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.