The color an object appears to be is the color of light that it absorbs.

When 4.21 grams of potassium hydroxide are added to 250 mL of water in a coffee cup calorimeter, the temperature rises by 4.14°C.

How can a nontoxic, nonflammable refrigerant be dangerous? A. Most common refrigerants decompose on contact with air to form flammable substances. B. The refrigerant can replace all the air in a space, depriving occupants of oxygen. C.

Which term best describes the process by which particles escape from the surface of a nonboiling liquid and enter the gas state?

NaCl (s) → Na + (aq) + Cl - (aq) entropy increasing or decreasing?

gas mixture composition of 78.0% Nitrogen, 17.0% Oxygen, % Argon,% Carbon Dioxide. Find the mass of Nitrogen?

Which of the following is not a chemical reaction a) gas formation b) solid formation c) energy change d) state change

Which equation is derived from the combined gas law

What is the ph of a solution with [h3o+] = 1 * 10-9 m?

Which base has the lowest ionization constant (Kb) ? A) HCl B) NaOH C) bleach D) blood

What is the name of the compound that has the formula N2O? a. nitrogen oxide b. dinitrogen oxide c. nitrogen dioxide d. dinitrogen monoxide