| http://www.w3.org/ns/prov#value | - together ??? ??? ??? solution is an example , a homogeneous mixture of two or more substances, a homogeneous mixture of two or more substances ??? ??? ??? physical change a change that alters the form or appearance of a material but does not convert the material into new substances ??? ??? ??? chemical change A change in which a substance is converted into a substance with different composition a
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