Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
How to discover Redox chemistry at home
By: Ernest Capraro
More than likely, you're already familiar with redox (reduction-oxidation) chemistry in your daily life. Looking around the home, you'll find examples readily available. Batteries create electrical current through redox reactions of various metals. (Rechargeable batteries use electricity to reverse the reaction, so they can...
By: Jamie Craig
In the early 1900's an American taxidermist named Carl Akeley decided that he needed an easier, improved and more novel way to stuff his animals. He developed the first "cement gun", a device which uses pressurised air to blow concrete onto (or evidently into)...
By: Alison Bowler
Titanium Symbol: Ti Atomic Number: 22 Atomic mass: 47.867 amu (atomic mass units) Melting Point: 1668 C (1941 K, 3034 F) Boiling Point: 3287.0 C (3560.15 K, 5948.6 F) Number of Electrons: 22 Number of Protons: 22 Number of Neutrons: 26...
Safety precautions for chemistry experiments
By: Shane Wyatt
Like most things in life, being safe while handling chemicals really boils down to common sense. A little planning and some basic precautions can keep accidents from becoming catastrophes. Safety precautions used should be designed around the most dangerous chemical to be handled. For example...
By: Alison Bowler
The Noble Gases form Group 18 of the Periodic Table of elements. Older American textbooks call this group VIIIA while in the older European convention it was group VIIIB or group 0. Group 18 is the preferred International Union for Pure and Applied Chemistry (IUPAC)...
An overview about the chemical element Helium
By: Brennen Finchum
Helium is an element that is fairly common but often overlooked. It's found in the air all over the world but primarily comes from natural gas deposits. It is a clear gas that is lighter than air. It was discovered in 1868 on the...
How James Chadwick discovered the neutron
By: Ken Parelius
Prior to 1932, the accepted model of the atom was that it contained only positively charged protons and negatively charged electrons.. Physicist Sir James Chadwick had noticed a discrepancy between the atomic numbers of atoms and the atomic weight. For example, the element Helium...
By: Ernest Capraro
This pair of experiments uses gravimetric principles to determine basic chemical data. The first experiment finds the molar mass of magnesium, the second finds the formula of a hydrate. Both experiments are written in a format that can be fitted easily to worksheets. They are...
How to help children enjoy chemistry
By: Alexander Wolf Hosking
Children love to learn, it is human instinct to crave new information, and we as adults have a duty to teach them. Learning does not have to be a boring experience, in fact we can make it quite an enjoyable encounter. Chemistry is great in...
Chemistry explained: What are electrons and protons?
By: Louis Rosenfeld
Electrons and protons, along with neutrons, are parts of an atom. Protons have a mass of about 1 atomic mass unit (1/602,000,000,000,000,000,000,000 of a gram) and an electrical charge of +1. Neutrons also have about the same mass...

 

1 66 67 68 69 70 130
CHOOSE YOUR SCIENCES 360 TOPIC: