Across
- 1. an expression made of numbers and symbols that represent the number and types of elements in a compound
- 5. a substance made up of entirely one atom
- 6. a table of the elements that is arranged in order of atomic number
- 8. anything that has mass and volume
- 13. a substance made up of two or more elements
- 14. a process in which two reactants interact to form new substances with different molecular structures with different properties.
- 15. an end substance of a chemical reaction
- 16. an uncharged particle
- 18. the type of mixture whose composition is not evenly mixed or spread out
- 19. a group of atoms joined together in a particular way
- 20. a physical mix of two or more substances that keep their own properties
- 21. the type of mixture that is blended or mixed so well that the substances will not separate out even over time
- 22. the small building blocks of matter
- 23. a type of matter which has a specific composition and specific properties
- 25. the temperature at which a liquid boils into a gas
- 26. a specific characteristic of a substance
- 27. the temperature at which a solid phase melts into a liquid
Down
- 2. a negatively charged particle
- 3. the reaction between a substance and air that releases energy in the form of heat and light
- 4. has four kinds of states - solid, liquid, gas, and plasma
- 5. a change in which the appearance changes but the kind of matter in the substance does not
- 7. a change in which products form from reactants and form entirely new substances through rearranging atoms
- 9. a substance composed of only one type of atom
- 10. a starting substance of a chemical reaction
- 11. a positively charged particle
- 12. a reaction that absorbs energy and cools its surroundings
- 17. the temperature in which a liquid changes into a solid
- 24. a reaction that releases energy and heat