Quantum mechanics and classical mechanics are alike because they both try to predict what will happen when a system experiences changes. True False

Look at the following reaction. How could you increase the production of 2NH3 (g) ? N2 (g) + 3H2 (g) 2NH3 (g) Increase the volume of the reaction vessel. Increase the pressure of the system. Decrease the pressure of the system.

What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2?

Give three examples of heterogeneous mixtures and three examples of solutions that you might use in everyday life.

Fluorine, chlorine, bromine, and iodine are part of a family called what?

Which of the following elements has both metallic and nonmetallic properties? A. Ar B. Ge C. Mg D. S

Find the mass of 1 mole of cuprous oxide, or cu2o. assume the atomic mass of copper is 64 and oxygen is 16.

Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has = 37.6 kJ/mol and = 40.7 kJ/mol. Why is there such a large difference between and, but not for and?

What happens to the charges when an ionic compound forms

We dissolve 93 grams of sodium sulfate (Na2SO4) in 20 grams of water. What is the percent by mass of sodium sulfate in this solution? Answer in units of %.

The modern atomic model includes electrons orbiting the nucleus. which of the following parts of dalton's atomic model was disproved by the discovery of the electron? - atoms are tiny particles. - atoms cannot be divided into smaller parts.