Educational News, General Chemistry, Organic Chemistry, Science Help

Even though it’s often presented in bright colors and shiny posters, the periodic table is more like a mysterious map to the natural world, unlocking its secrets and uncovering its patterns for those who know how to look. There’s nothing else quite like it–it organizes the building blocks of every substance on earth, the chemical elements, and arranges them according ...

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Educational News, Geometry, Math Help

The surface area of a sphere is the number of square units that will exactly cover its surface. The formula for the surface area of a sphere is given by: A = 4r²π where A represents the area and r represents the radius. If you already know the surface area and need to find the radius, we can rearrange the ...

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Educational News, Organic Chemistry, Science Help

In some ways, Chemistry is the science of the invisible. There’s simply no way to see things like atoms and molecules with the naked eye—they’re just too small. So how do people know what a molecule really looks like? And how can scientists prove that a molecule is what they say it is? Structural chemistry is the science of finding ...

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Educational News, Geometry, Math Help

The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. AB + BC > AC BC + AC > AB AC + AB > BC Why is this important? If any of these three inequalities is not true, you do not have ...

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Educational News, General Chemistry, Organic Chemistry, Science Help

Acids and bases are one of the most important topics in all of chemistry… and also in the fight against evil. It’s widely known that sizzling, popping vats of acid make excellent booby traps as well as providing that perfect evil-lair ambiance, so if you want to be a successful superhero, it’s vital that you understand how acids and bases ...

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Educational News, General Chemistry, Organic Chemistry, Science Help

It may look like the periodic table is coming down with the chicken pox, but Lewis Dot Structures are a core part of chemistry. They bring together several important concepts about how atoms and molecules work and help you visualize important compounds, so it’s worth getting these right! Molecular Formula You’re probably pretty familiar with compounds like CO2 and ...

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Educational News, Organic Chemistry, Science Help

Are you staring down a page full of o-chem line drawings? Help is on the way! It may look like the Zig-Zag Army decided to take on the Union of Stick-Figure Spacemen, but line drawings save you a lot of time in organic chemistry. It just takes a bit of know-how to learn what they mean—and a bit of practice ...

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Educational News, Math Help

Math is confusing enough without having to deal with lots extra choices. But if you’re a highschooler, there are choices galore. IB, AP Calc, regular Calc, Precalc, Algebra II with Trig, Algebra with Honors, Math Analysis… it all starts to sound like some strange underworld maze that probably has a Minotaur waiting at the end of it. To make it ...

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Educational News, Math Help, Trigonometry

We have already seen how to solve triangles using the Law of Sines. Such problems involve two sides and two angles. The Law of Cosines (or the Cosine Rule) is used when we have all three sides involved and only one angle. The formula is: c is the unknown side a and b are the given sides γ is ...

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Educational News, Organic Chemistry, Science Help

Chemistry is both an art and science. In the classroom, you study the science part—the way that carbon atoms form bonds and react to make interesting molecules. And as most chemistry students know, there is an awful lot of science to memorize. Where Science Meets Art Ironically, the lab component is actually more like an art. It involves some knowledge, ...

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