Which of the following is the balanced equation for the decomposition of hydrogen peroxide (H2O2) into water and oxygen gas? O A. H2O2 --> 2H + 20
O B. H2O2 --> H2O + O2
O c. 2H2O2 --> H2O + 202
O D. 2H202 --> 2H20 + 02

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.