CHEMISTRY-1 EXAM REVIEW WITH CORRECT ANSWERS AND EXPLANATION

mass - Answer-the amount of matter in an object volume - Answer-the amount of space occupied by an object extensive property - Answer-a property that depends on the amount of matter in a sample intensive property - Answer-a property that depends on the type of matter in a sample, not the amount of matter substance - Answer-Matter that has a uniform and definite composition physical property - Answer-a quality or condition of a substance that can be observed or measured without changing the substance's composition solid - Answer-of definite shape and volume liquid - Answer-a substance in the fluid state of matter having no fixed shape but a fixed volume gas - Answer-the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity vapor - Answer-matter that exists in the gas state but is generally a liquid or solid at room temperature Physical change - Answer-a change from one state (solid or liquid or gas) to another without a change in chemical composition mixtures - Answer-a physical combination of substances that can still be seperated heterogeneous mixture - Answer-a mixture in which the composition is not uniform throughout homogeneous mixture - Answer-a mixture in which the composition is uniform throughout solution - Answer-a homogeneous mixture of two or more substances