Fifty grams (50.0) of hot water at a temperature of 65.0 c is mixed with 40.0 grams of Cold water, the final temperature of the mixture is 45.0'c. how much heat energy did the hot water lose?

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Compare and contrast the bohr model and the electron cloud models of the atom.

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8