Across
- 4. Atoms that give away or accept electrons from another in order to follow the octet rule
- 7. Atoms or groups of atoms with a charge
- 11. a starting substance in a chemical reaction.
- 13. A reaction that involves an exchange of positive ions between two compounds.
- 15. a group of atoms bonding together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
- 16. Has negative charged ions
- 17. The symbol that separates the reactants from the products of a chemical reaction is?
- 18. A symbolic representation of a chemical reaction in a form of symbols and formulas
- 20. a whole number that appears before a formula in an equation.
- 21. Has positive charged ions, formed when electrons are lost
- 22. water,mercury,vegetable oil, ethanol.
Down
- 1. A reaction in which a single compound is broken down into simpler substances.
- 2. A reaction in which oxygen reacts with another substance,often producing carbon dioxide and water
- 3. has a definite shape and volume
- 5. A pair of electrons is shared between two atoms
- 6. an equation in which each side has the same number of atoms of each element.
- 8. when the energy level contain a full 8 electrons
- 9. Bonds form to make atoms "happy"
- 10. water turning into mist
- 12. A reaction in which the atoms of one element replace the atoms of a second element
- 14. electrons move in definite "orbit"
- 19. a new substance formed in a chemical reaction.
