Do you know that there's enough gold in the Earth’s crust that can cover the surface of the planet completely? Or, that dynamite contains peanuts as an ingredient? Well, chemistry is a captivating science that is full of surprising trivia and stats. It is the study of matter and energy and the interactions between them. While some facts are fascinating, some are too odd to be believed.
Jotted down by our chemistry dissertation help professionals, below are some incredible chemistry facts that will spark your interest in this physical science.
Out of all metals, copper and gold are the only two non-silvery ones
A metal is an element that has metallic bonds and readily forms positive ions. The electrons of most metals reflect colors equally. So, the sunlight is reflected as white. But the electrons of gold and copper absorb blue and violet light, leaving the yellow light to reflect.
The hydrogen atom present in your body is around 13.5 billion years old
The first chemical element that appeared at the beginning of the universe’s existence was Hydrogen. Since then, no hydrogen has appeared which means that the age of every atom of this chemical element in the world, including those in the human body, is around 13.5 billion years old.
Water expands when it freezes
Most of the metals when cool, they become smaller in size. However, the picture is slightly different for water. The water molecule is made up of one atom of oxygen and two atoms of hydrogen. When these molecules come in the crystalline state, they need more space. As a result, water expands in its cold state.
The characteristic smell after lightning storms is due to the production of Ozone
Have you ever thought why you get that “clean” smell sensation after a thunderstorm? Well, it is due to the production of ozone in the atmosphere. When lightning strikes, the oxygen molecule breaks down into radicals which reform into ozone.
The glass is actually a liquid
The glass is a material that is neither solid nor liquid. Scientists call them non-crystalline amorphous solids - a state somewhere between solid and liquid. There is also a substance called metal glass which is made up of materials that are three times stronger than titanium and have an elastic modulus of bone.
The life-saving airbags are filled with poisonous acid
Safety cushions that are meant to save our lives actually contain toxic sodium azide (NaN3) – a salt of hydrazoic acid. But when an accident takes place, the car’s sensors trigger impulse which instantly raises the temperature of the salt and then decomposes it into harmless nitrogen gas, rapidly expanding the airbag.
Pouring a handful of salt into a glass of water will decrease the water level
Adding a volume of sodium chloride (salt) to a volume of water can decrease the water level up to 2%. It is because of the solvent molecules that get more ordered when brought closer to the dissolved ions.
Diamond and graphite are both made up of carbon
Diamond and graphite are made of the same stuff, but the difference between them is their form. They are arranged differently in space making them allotropes of carbon.
A rubber tyre is one large molecule
While most of the molecules are microscopic, some can be very big. The rubber that tyres are made of is a polymer. The sulfur and silicic acid present in the tyre link the molecules of the polymer which further becomes a large polymer molecule, thus turning into elastic and durable rubber.
These were a few interesting facts about chemistry that many people do not know about. We hope you enjoyed reading this blog.
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