Drawing isomers is a skill we should expect to develop in a Chemistry class. In case you’re not sure what are isomers, they are basically structures that have the same chemical formula (same number of atoms) but are connected differently, therefore, having different structural formula. The best way to explain how to draw an isomer […]
Need to convert between prefixes like from picosecond to microsecond? Or kilometer to milimeter? Do you need to memorize the SI prefixes? Find it difficult to remember the letters/symbols, sequence and exponent value? If you answered yes, then you are not alone. My students join you in this struggle. That’s why I developed a mnemonic to help
Pure substance and mixture. Element and compound. Homogeneous mixture and heterogeneous mixture. How are they different? Does it MATTER? Yes! WHY? How to classify them? You’re in luck! Ask two questions and you can easily classify matter into element, compound, homogeneous mixture and heterogeneous mixture. Let me show you how. Let’s classify one of the
Are you curious if the changes that occur around you is physical or chemical? What’s the difference between physical and chemical change? It all lies in whether a new substance was formed during the change (refer to the flowchart above). If a new substance is formed, then the change is chemical. Otherwise, the change is physical.
Changes…Changes…Changes…Is it Physical or Chemical? Read More »
