Identify the oxidizing agent, the reducing agent, the substance oxidized and the substance reduced for Cl2 (g) + 2 Na (s) → 2 Na+ (aq) + 2 Cl-(aq)

Evaluate this exponential expression,8. (2 + 3)2 – 42

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.