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Elements, Compounds, Mixtures
Terms in this set (14)
matter made up of only one type of particle that has the same properties throughout the sample
both elements and compounds are considered pure substances
matter made up of two or more different types of particles, each with their own set of properties, the different substances in a mixture are only physically combined.
a pure substance in which each particle is made up of two or more different types of atoms bonded together. can be broken down into simpler substances by chemical means.
A pure substance that cannot be broken down into simpler substances by chemical means.
a mixture of two or more substances and each substances is distributed evenly throughout the substance
a characteristic that can be observed without changing the identity of a substance
a characteristic that can only be observed by changing the substance into a new substance
two or more atoms joined together by chemical bonds
a change that does not result in a new substance being formed
a change that transforms one substance into a different substance
examples of physical changes
Melting butter, tearing paper, crushing a can, freezing water, dissolving salt, cutting your hair.
examples of chemical changes
burning, reacting, decomposing, digesting
examples of physical properties
color, odor, density, melting point, malleability
examples of chemical properties
flammability, reactivity, toxicity,