Top stories published by countdown.education in October of 2016 – Medium

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Top Stories published by countdown.education in October of 2016

Ernest Wolfe in countdown.education

4 Steps to Naming Compounds in Chemistry Nomenclature

1. Is it an Ionic Compound or a Molecular Compound?

It is Ionic if it has a metal (an element on the left or middle of the periodic table)

Ernest Wolfe in countdown.education

6 Types of Symbiotic Relationships EXPLAINED (with examples)

1. Competition (-/-)

Definition: the struggle of individuals to obtain a shared limiting resource
Competitive Exclusion Principle: Two different species cannot…

Ernest Wolfe in countdown.education

10 Acts Leading to The American Revolution

1. Navigation Acts (1660–1663)

What they did: supported British mercantilism by requiring all American trade to go through English ports, on English ships, and to be for the benefit of Britain rather than the…

Ernest Wolfe in countdown.education

5 Tests to Classify a Substance as Molecular Polar, Non-Polar, Ionic, Metallic, or Covalent Network

1. Does it have a high melting point?

If a substance has a relatively low melting point (below 400ºF), then it…

Ernest Wolfe in countdown.education

5 Differences Between The Scientific Revolution and Enlightenment

1. 16th and 17th Century (Scientific Revolution) vs. 18th Century (Enlightenment)

The Scientific Revolution came first and laid the…

Ernest Wolfe in countdown.education

6 Molecular Geometry Structures and What You Should Know About Them

1. Linear

3 total atoms: 1 central atom and 2 surrounding atoms
No Lone Pairs: no electrons around the central atom that are not part of a bond with another…

Ernest Wolfe in countdown.education

5 Keys to Darwin’s Theory of Natural Selection

1. Individuals have a lot more offspring than they should

Species tend to produce an excess of offspring, and since resources are limited, this means that…

Ernest Wolfe in countdown.education

5 Processes That Make Evolution RANDOM

1. Mutations

Definition: A random change in someone’s genetic code due to a mistake while copying DNA
Example: You probably have at least a hundred mutations in your genome, meaning you have new genes…

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