CHEMICAL REACTIONS PRACTICE PROBLEMS

Limiting reagent stoichiometry (practice) | Khan Academy
Practice: Limiting reagent stoichiometry. This is the currently selected item. Next lesson. Molecular composition. Science · Chemistry library · Chemical reactions and stoichiometry
Balancing Chemical Equations - Chemical Equations
Balance a chemical equation. Recognize that the number of atoms of each element is conserved in a chemical reaction. Describe the difference between coefficients and subscripts in a chemical equation. Translate from symbolic to molecular representations of matter.
Electron Configurations & The Periodic Table
In their chemical reactions halogen atoms achieve a valence shell octet by capturing or borrowing the eighth electron from another atom or molecule. The alkali metals Li, Na, K etc. (colored violet above) are also exceptionally reactive, but for the opposite reason. These atoms have only one electron in the valence shell, and on losing this