How many kcal are produced when 48 g of O2 react?
CH4(g) + 202(g) + CO2(g) + 2H2O(g) + 218 kcal

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?

Which of the following is a chemical property of water at 4 c