A 10.0-gram sample of H2O (l) at 23.0°C absorbs 209 joules of heat. What is the final temperature of the H2O (l) sample? (1) 5.0°C (3) 28.0°C (2) 18.0°C (4) 50.0°C

Directions: The solubility curve for several common salts is shown in the graph. Use the graph to answer any questions that follow. A KNO3 solution hits saturation when 75 g of salt have dissolved. At which temperature is the solution? A. 15°C B.

Chemical name for S2F3

The electromagnetic force acts between what

Combustion analysis of toluene, a common organic solvent, gives 8.20 mg of co2 and 1.92 mg of h2o. if the compound contains only carbon and hydrogen, what is its empirical formula?

What are the atomic number and atomic mass number of fluorine atoms with 9 protons and 10 neutrons? if we could add a proton to a fluorine nucleus, would the result still be fluorine? what if we added a neutron to a fluorine nucleus? explain?

4fe (s) + 3o2 (g) →2fe2o3 (s) how many grams of Fe2O3 are produced when 12.0 of iron rusts

Chromium 6 is commonly referred to as?

How does a parallel circuit differ from a series circuit? A. A parallel circuit had one path for electrons, but a series circuit has more then one path. B. A series circuit has one path for electrons, but a parallel circuit has more then one path. C.

Which of the following is an example of potential energy? -none of the above -A person jumping on a trampoline -a book on the shelf -A person running in place

One atom of silicon can properly be combined in a compound with a. three atoms of hydrogen. b. four atoms of calcium. c. two atoms of oxygen. d. one atom of chlorine.