You have mass and you take up space, therefore, you ___!
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solubility
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The ability to dissolve in another substance
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volume
Front
The amount of space an object takes up
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flammability
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the ability to burn
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float
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an object that is less dense than water will do this
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matter
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Anything that has mass and takes up space
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mixture
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A combination of two or more substances that are not chemically combined
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Law of Conservation of Mass
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the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
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compound
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A pure substance made up of only one type of molecule
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reactivity
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does it react chemically with other substances?
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endothermic
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Heat energy is used up during a reaction so the surrounding area feels COLDER
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physical change
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When a substance changes in appearance, but NO NEW SUBSTANCES are created.
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ductility
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The ability to be pulled into thin wires
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exothermic
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Heat energy is given off during a reaction so the surrounding area feels WARMER
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proton
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A subatomic particle that has a positive charge and that is found in the nucleus of an atom
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coefficient
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A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
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products
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the new substances that are formed by the chemical reaction
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atom
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the smallest particle of an element that still has the properties of that element
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chemical change
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A change in matter that produces one or more new substances with different properties
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reactants
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A starting material in a chemical reaction
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pure substance
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A substance made of only one kind of matter and having definite properties.
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neutron
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A subatomic particle that has no charge and that is found in the nucleus of an atom
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molecule
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A group of atoms bonded together
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subscript
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A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
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element
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A pure substance made of only one kind of atom
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mass
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the amount of matter in an object
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density
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mass/volume
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electron
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A subatomic particle that has a negative charge and is found around the nucleus of an atom
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precipitate
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A solid that forms from a solution during a chemical reaction.
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chemical property
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A characteristic that can ONLY be observed when one substance is chemically changed into a new substance(s).
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physical property
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characteristic of a substance that can be observed or measured without changing the identity of the substance
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weight
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A measure of the force of gravity on an object
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characteristic property
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A quality of a substance that never changes and can be used to identify the substance
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malleability
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The ability of a substance to be hammered or rolled into sheets
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viscosity
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A liquid's resistance to flowing, thickness of a liquid
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Periodic Table of Elements
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a chart where all the elements are organized into periods and groups according to their properties