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Terms in this set (15)
a solid substance that forms in a liquid during a chemical reaction
The process of breaking chemical bonds in one or more substances and the reforming of new bonds to create new substances
changes that alter the form or appearance of a material but not a new substance
property or behavior of a substance when it undergoes a chemical change or reaction. For example: toxicity, oxidation, and flammability. Iron oxidizes and becomes rust.
- a characteristic of matter, such as density, melting point, and boiling point, that can be seen through direct observation
the materials you have at the beginning of a reaction
the materials you have at the end of a reaction
shows the number of atoms of each element in the compound
a short, easy way to show a chemical reaction, using symbols instead of words (includes reactants and products)
arrow in a reaction which means "produces"
The number in front of the compound that indicates how many molecules are present in that reaction.
shows the number of atoms of an element in one molecule of a substance
a substance that contains two or more different elements that are chemically combined
the combination of two or more bonded atoms
Law of Conservation of Mass
- during a chemical reaction, matter is not created or destroyed; it is only changed. The equation must be balanced.
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