What is the final temperature when 900 J are given off by 10 g of aluminum if the initial temperature of aluminum is 10°C and the specific heat of aluminum is 0.9 J/g°C? Show your work in this space.

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.