Across
- 5. a reaction where parts of two ionic compounds are exchanged, making two new compounds
- 9. a reaction in which a compound breaks down into two or more simpler substances
- 10. when a nonmetal and a nonmetal bond it forms a
- 12. the starting materials in a reaction that undergoes a chemical change to form a product
- 16. a reaction in which one element is substituted for another element in a compound
- 17. an atom or group of atoms that carries a positive or negative electric charge
- 18. how much space an object takes up in relation to the amount of mass the object has
- 19. another subatomic particle in the nucleus but with a neutral charge
- 20. a subatomic particle in the nucleus that has a positive charge
Down
- 1. when a nonmetal and a metal bond to form a compound
- 2. this reaction occurs when two or more reactants combine to form a single product
- 3. the subatomic particle that circles the outside of the nucleus with a negative charge
- 4. where elements are found on
- 6. a reaction where a change of materials into another, and new substances are formed
- 7. any chemical reaction that absorbs heat from its surroundings
- 8. a chemical reaction that releases energy by light or heat
- 11. the outcome of a chemical reaction
- 13. a chemical process in which a substance reacts rapidly with oxygen and gives off heat
- 14. poor conductors of electricity and heat, can be found on the right side of the periodic table
- 15. an element that is good at conducting heat and electricity