Our modern-day periodic table would not be what it is if it weren't for the contributions made by a few scientists in the 1800's. ...

Periodic Trends for Electronegativity Electronegativity is a chemical property that attempts to describe the attraction between a bonding ...

Electronic Configuration is the arrangement of electrons and atoms.It can help us to understand the periodic table of elements. Orbital :...

We all know that atoms are the smallest particles of an element and they have the same properties of the element. But thousands of years ago...

Percent Yield is the amount  of product obtained in a chemical reaction It can be determined by the masses used in a reaction and the mol...

All of the problems in this set are stoichiometry problems with at least one equation participant as a gas at STP. These questions always re...

Today, we learned how to do stoichiometry calculations involving particles, moles, and mass . These calculations are somewhat similar to mol...

Stoichiometry a branch of chemistry that deals with the quantitative relationships that exist between the reactants  and products in chemi...

We all know that an exothermic reaction gives off energy in the form of heat, light, or sound, and that an endothermic reaction absorbs ene...

Today, we did a lab about chemical reactions. The purpose of the lab is to observe a variety of chemical reactions and to interpret an...