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Balancing Chemical Equations Step by Step Practice Problems | How to Pass Chemistry

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Introduction to Balancing Chemical Equations

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What triggers a chemical reaction? - Kareem Jarrah

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What is chemical equilibrium? - George Zaidan and Charles Morton

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How to speed up chemical reactions (and get a date) - Aaron Sams

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Balancing Chemical Equations (Balancing Chemical Equations) | Chemistry Simulations | CK-12

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Learn the basic of chemical equations by watching methane bubbles light on fire. Practice balancing chemical equations.

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Activation energy: Kickstarting chemical reactions - Vance Kite

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Chemical reactions are constantly happening in your body -- even at this very moment. But what catalyzes these important reactions? Vance Kite explains how enzymes assist the process, while providing a light-hearted way to remember how activation energy works.

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Chemical reactions introduction (video) | Khan Academy

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Reactants and products in reversible and irreversible chemical reactions.

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Chemical reactions are evidence a chemical change is occurring. The starting materials change into new products or chemical species. How do you know a chemical reaction has taken place? If you observe one or more of the following, a reaction may have occurred:

While there are millions of different reactions, most can be classified as belonging to one of 5 simple categories. Here is a look at these 5 kinds of reactions, with the general equation for each reaction and examples.

Synthesis Reaction or Direct Combination Reaction

One of the main types of chemical reactions is a synthesis or direct combination reaction. As the name implies, simple reactants make or synthesize a more complex product. The basic form of a synthesis reaction is:

A + B → AB

A simple example of a synthesis reaction is the formation of water from its elements, hydrogen, and oxygen:

Another good example of a synthesis reaction is the overall equation for photosynthesis, the reaction through which plants make glucose and oxygen from sunlight, carbon dioxide, and water:

More Types of Chemical Reactions

In addition to the 5 main types of chemical reactions, there are other important categories of reactions and other ways to classify reactions. Here are some more kinds of reactions:

acid-base reaction: HA + BOH → H2O + BA

neutralization reaction: acid + base → salt + water

oxidation-reduction or redox reaction: one atom gains an electron while another atom loses an electron

isomerization: structural arrangement of a molecule changes, although its formula remains the same

hydrolysis: AB + H₂O → AH + BOH

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Names and Examples of Simple Chemical Reactions

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Chemical reactions are evidence a chemical change is occurring. The starting materials change into new products or chemical species. How do you know a chemical reaction has taken place? If you observe one or more of the following, a reaction may have occurred: While there are millions of different reactions, most can be classified as belonging to one of 5 simple categories.

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Chem4Kids.com! This tutorial introduces basics of chemical reactions. Other sections include matter, elements, the periodic table, and biochemistry.

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Solubility Curves | Properties of Matter | Chemistry | FuseSchool

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Solubility Curves - Overview ( Video ) | Chemistry

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Practice balancing chemical equations with this game!