What happens in an oxidation half-reaction?

A.

Elements gain electrons.

B.

Elements lose electrons.

C.

Oxygen is added.

D.

Oxygen is lost.

A cylinder contains oxygen at a pressure of 10.0 atm and a temperature of 300.0 K. The volume of the cylinder is 10,000 mL. What is the mass of oxygen gas?

Which element, if combined with chlorine, will have the greatest attraction for the chlorine electrons? N P As

What is the oxidation number of C in NaHCO3?

Chan has an ambition to use biodiversity as a tool to prevent particular diseases in humans. How can Chan use biodiversity in his work? 1. He can isolate species from their ideal ecosystems. 2. He can interbreed species to create the perfect hybrid.

Which process is responsible for the movement of heated air from baseboard heaters to the rest of a room? (A) temperature (B) conduction (C) convection (D) thermal transfer

a dynamic state where two opposing forces are in balance, where two opposite event are occurring at equal rate is

What is mitosis in a living cell?

Which of the following statements is true? A. Some chemical reactions release energy, and other chemical reactions absorb energy. B. Chemical reactions, by definition, cannot absorb or release energy. C.

4 Properties of Bases?

Which statement best describes the intermolecular forces between N2 molecules and NH3 molecules in the solid phase? A.