Chemistry

Last Updated on December 1, 2023 by Zinab Hasssan Virtual Labs now are one of the most critical e-learning methods that are used in facilitating science education, especially in chemistry. Chemistry virtual lab is an online simulation of a real chemistry lab. It is designed to help students conduct their chemistry experiments easily without any risks in a safe environment …

Last Updated on March 3, 2025 by Zinab Hasssan When you’re reading a scientific text, or having a science lesson regarding bonding and valency, you may come across the term valence electrons. But what does it mean? This is what we will know in this article in detail. In addition to explaining how to find valence electrons in more than …

Last Updated on March 5, 2025 by Zinab Hasssan Have you ever thought about how we can get fresh water from sea water? Or how can we get the skim milk? Or how is blood separated into its four components in hospitals and blood banks? Sand and water/ Cereal and milk/ Sugar and salt/ Salt and water/ Water and ethanol/ …

Last Updated on June 18, 2023 by Sara Assem Acids and Bases play a vital role in our life and all of the environment around us. When you brush your teeth with toothpaste or wash your hands with soap or take your coffee, you’ve already experienced acids and bases. In chemistry, substances are classified as acids or bases or neutral, …

Last Updated on March 4, 2025 by Zinab Hasssan What is Recrystallization? The recrystallization definition is a process used for purifying compounds that contain impurities and these compounds are: – Dissolved at solvents. – Solids at room temperature. – Obtained from chemical reactions or natural sources.   On the other hand, the impurities include mixtures of soluble, insoluble, and colored substances. …