3. Which is held constant when a gas

obeys Boyle's law?

A. motion

temperature

B. pressure

D. volume

linetic molecular

What type of energy is produced by a geyser? A. Chemical energy B. Thermal energy C. Nuclear energy D. Radiant energy

What are the properties of the following material which make the suitable for the use given: 1. Glass in Windows 2. wooden or plastic handles on a saucepan. 3. metals used for making airplanes

Can make a concentrated solution more dilute by adding solvent?

Which of the following is true for all exergonic reactions? a) A net input of energy from the surroundings is required for the reactions to proceed. b) Some reactants will be converted to products. c) The reactions are nonspontaneous.

Given: N2 + 3H2 → 2NH3 Bond Bond Energy (kJ/mol) N≡N 942 H-H 432 N-H 386 Use the bond energies to calculate the change in enthalpy for the reaction. The enthalpy change for the reaction is kilojoules.

What is the relationship between pH and H concentration

Select the correct answer. Consider an atom that has an electron in an excited state. The electron falls to a lower energy level. What effect does that have on the electron? ОА ОВ. The electron releases energy in the form of light.

What is the volume in milliliters of 350 m koh needed to completely neutralize 15.0 ml of a. 250 m h2so4 solution?

What happens to a solid object with a density that is less than the density of water when it is placed in water?

What is a naturally occurring, inorganic solid with a definite structure and composition is called what?