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Across 1. a reaction in which one or more substances are converted into different substances 5. anything that has mass and takes up space 7. _____________ do not depend on the amount of matter present 8. horizontal rows of elements in the periodic table 9. a characteristic that can be observed or measured with changing the identity of the substance 10. high temperature physical state of matter in which atoms lose their electrons 11. a blend of two or more kinds of matter, each of which retains its own identity and properties 15. substance with a fixed composition and every sample given has exactly the same characteristic properties and has the same composition 17. vertical columns of the periodic table 18. vertical columns of the periodic table 19. an element that is a good conductor of heat and electricity 20. the smallest unit of an element that maintains the properties of that element 21. any substance that has a definite composition 26. a physical change of a substance from one state to another 28. a substance that is made from the atoms of two or more elements that are chemically bonded 29. uniform in composition 30. the substances that react in a chemical change 31. state of matter with a definite volume and definite shape 32. the study of the composition, structure, and properties of matter and the changes it undergoes

Down 2. _____________ depend on the amount of matter that is present 3. relates to a substance's ability to undergo changes that transform it into different substances 4. a change in a substance that does not involve a change in the identity of the substance 6. an element that is a poor conductor of heat and electricity 12. pure substance made of only one kind of atom 13. a change in which one or more substances are converted into different substances 14. a measure of the amount of matter 16. homogenous mixtures 22. an element that has some characteristics of metals and some characteristics of nonmetals 23. not uniform throughout 24. state of matter with no definite volume and no definite shape 25. state of matter with a definite volume and no definite shape 27. the substances formed by the chemical change