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Category: Chemical equations

How to perform stoichiometric calculations

Stoichiometry is the calculation of reactants and products in a chemical reaction. What’s a mole? Before we dive in, let me introduce you the concept of mole: a mole (symbol mol) is the quantity of matter, equal to the mass of a substance divided by its molar mass. But wat is this? Molar mass The molar mass of a substance is defined as the mass of a mole of that substance and is therefore measured in grams per mole (g/mol). These are the things you need to know in order… Read more How to perform stoichiometric calculations

How to balance a chemical equation

Balancing a chemical equation is very important in order to calculate the amount of reagents needed and the products in a reaction. After all, it’s an equation, so you must have the same quantities on both sides. Let’s take the reaction between hydrogen and oxygen, which yields water: That small number specifies the number of atoms of an element and it can’t be changed. Here, the elements are hydrogen H and oxygen O, but they exist as biatomic gases, which means two atoms of hydrogen make a molecule and the… Read more How to balance a chemical equation

How to write a chemical equation | Basics

Chemistry happens everywhere at any time: in our body chemical reactions allow to digest and break down fats, proteins, to transport hormones, to remove old cells, to carry the oxygen we breathe to our blood; combustion is a chemical reaction, photosynthesis is a chemical reaction as well. Chemistry is a fundamental part of science without which we could not explain many, and I say many things. As a kid, you probably did the “volcano experiment” at least once: you simulated an eruption by mixing vinegar and baking soda. What happened?… Read more How to write a chemical equation | Basics