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The amount of electrons on the outermost layer of an atom.

The amount of valence electrons determine how reactive an element is.

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These are the things that react in a chemical reaction to create the products

Oxygen has to be a reactant in order for a combustion reaction to occur.

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These are the things that come after the arrow in a chemical reaction.

In a combustion reaction carbon is typically a product.

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This measures how basic or acidic something is, it can be found using pH paper or litmus paper.

pH stands for potential of hydrogen.

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The amount of electrons an atom gains or loses in order to react.

Oxidation number is important for chemical reactions.

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This law states that matter cannot be created or destroyed, it can only change shape/form.

All balanced equations demonstrate the law of conservation of mass.

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Indicators are things that change colors in the presence of a certain substance.

Ph paper is an example of an indicator.

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A combustion reaction is a reaction that involves the reaction between a substance and oxygen to produce heat, light, and a new substance.

Combustion reactions have to have oxygen in the reactants side in order to work.

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A double replacement reaction is a reaction in which two compounds trade elements.

The formula for Double replacement would be AB+CD=AC+BD

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A single replacement reaction is when one element replaces another in a compound

The formula for single-replacement would be A+BC=B+AC

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A decomposition reaction is a reaction in which one substance breaks down into tow simpler substances.

The formula for a decomposition reaction would be AB=A+B

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A synthesis reaction is when two substances combine to form a new single substance.

The formula for a synthesis reaction is A+B=AB

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A chemical reaction is a reaction that either forms or breaks chemical bonds.

The forming of water is a chemical reaction.

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A covalent bond is a bond that involves the sharing of 1 or more electrons.

A common example of a covalent bond would be water (H20)

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An ionic bond is when two or more atoms have one positive charge and one negative charge and are attracted because they are opposites.

Sodium fluoride is an example of an ionic bond

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A chemical bond is the force that holds compounds and molecules together.

Chemical bonds are formed or destroyed in chemical reactions.

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Neutral means that something isn't one sided and is neutral in the middle.

Salt is an example of neutral is salt

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A base is a substance that neutralizes an acid

Sodium hydroxide is an example of a good base

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a substance that neutralizes alkalis and dissolve metals.

Sulfonic acid is used to corrode metals.