CHEMISTRY INFORMATION AND VIDEOS

By Garry Mason | Chemistry related articles and tutoring and video information.

Understanding the Mole Unit of Measurement

A mole is simply a unit of measurement. Units are invented when existing units are inadequate. Chemical reactions often take place at levels where …

Chemistry

Why Is a Mole in Chemistry Called a Mole?

A mole is an important unit in chemistry. Do you know the mole got its name? Here is the answer to why a mole is called a mole.<p>Ostwald is responsible …

Chemistry

Is Fire a Gas, Liquid, or Solid?

The ancient Greeks and alchemists thought that fire was itself an element, along with earth, air, and water. However, the modern definition of an …

Chemistry

Light Rare Earth Elements (LREE)

The light rare earth elements, light-group rare earths, or LREE are a subset of the lanthanide series of the rare earth elements, which are …

Chemistry

Why Is Chemistry So Hard?

What Makes Chemistry a Challenging Science<p>Chemistry has a reputation as a hard class and difficult science to master. Here's a look at what makes …

Chemistry

There's a metal that conducts electricity but not heat

Vanadium Dioxide<p>In science, there exists a law known as the Wiedemann-Franz Law that states, simply, that most metals that are good conductors of …

Ion Definition

Chemistry Glossary Definition of Ion<p>Ion Definition<p>An ion is defined as an atom or molecule which has gained or lost one or more of its valence …

Chemistry

An Illustrated Periodic Table Showing How Chemical Elements Interact With Our Everyday Lives

Retired Boeing software engineer Keith Enevoldsen created the color-coded “Periodic Tables of Elements, in Pictures and Words” for both kids and …

InterAct

What Are Element Blocks?

What Are Element Blocks on the Periodic Table?<p>One way to group elements is by element blocks, sometimes known as element families.<p>What Is an Element …

Chemistry

Interactive periodic table finally clues us in to what elements are used for

Looking at the periodic table, most of us have no issues identifying the use of certain elements. Sodium, carbon, nitrogen, oxygen and others are no-brainers but what about the less talked about elements.<p>Seriously, do you know what Vanadium is used for? How about Polonium? Of course you don’t. …

Chemistry

A Periodic Table Surprise: The One Element In Stars That Isn't On Earth

When it comes to the elements in the periodic table found throughout the Universe, it’s only the first two that originated from the Big Bang: hydrogen and helium. Everything else was formed from stars, whether:<p>fused in their cores, from lighter elements into heavier ones,<br>• built in supernovae, where …

Solar System

Lose Yourself in These Videos of Chemistry Up Close

Scientists in China use 4K imaging to make the most gorgeous chemistry videos we've ever seen.<p>Scientists at the University of Science and Technology of China created these up-close movies of chemical reactions, featuring chemical formulas overlaid on the video to tell you what you're looking at. …

The Kilogram's Makeover Is Almost Complete

The kilogram is a 127-year-old relic. It is the last remaining standard of measurement in the International System of Units that is still based on a …

Physics

10 Quantum Truths About Our Universe

From the moment that it was discovered that the macroscopic, classical rules that governed electricity, magnetism and light didn’t necessarily apply to the smallest, subatomic scales, a whole new view of the Universe became accessible to humanity. This quantum picture is much larger and …

Quantum Mechanics

Wiki page not found - Learn Chemistry

The Learn Chemistry Wiki has been shut down<p>Thanks for visiting. In order to consolidate and improve our education resources, we've shut down the …

Education

Diffusion of gases - ammonia and hydrogen chloride- Learn Chemistry

Diffusion of gases – ammonia and hydrogen chloride<p>Demonstration<p>Concentrated ammonia solution is placed on a pad in one end of a tube and concentrated …

Cookie Science: How Baking Soda Works

Baking soda is the most basic leavening agent, and a cornerstone of American desserts. Chemical leavening agents were known even in ancient times, but it wasn't until the mid–19th century, when pure sodium bicarbonate from brands like Arm & Hammer became commercially available, that their …

The Periodic Table of Oxidation States

There are a whole host of periodic tables out there, and I’ve already added to the pile with a periodic table of data previously. Today’s post is …

Chemistry

Zippy videos teach chemistry behind everyday life

Two molecules give Sriracha hot sauce a fiery flavor by tripping a cellular alarm in the mouth that usually signals blazing-hot foods above 42° …

Chemistry

How big is a mole?

I like fill-in-the-blank days. However, there is a problem with mole day. Mole day is, of course, 10/23. You know, a mole? One mole is 6.02 x 1023 …

Albert Einstein

The Science Behind Pop Rocks Candy

I'm pretty sure that Pop Rocks ranked quite high as one of the most entertaining candies of your childhood. A fizzy, popping feeling of tiny bubbles …

Popping

The oldest trick in the cookbook: Why preheating the oven is definitely essential

It's the one constant with every recipe: "preheat the oven to XX degrees". But in our time-poor, instant gratification, 'just put the food in my …

Technology (Australia)

Don’t Understand the Periodic Table? It’s Just a Quantum Truth Table

In the wee hours of the late 17th century, Isaac Newton could be found locked up in his laboratory prodding the secrets of nature. Giant plumes of …

Physics

PhET Interactive Simulations

Types of Chemical Reactions

Types of Chemical Reactions<p>What are Chemical Reactions?<p>Chemical reactions take place at the molecular level, when the atoms and molecules of the …