Across
- 5. These charges are attracted to each other
- 6. The element name that corresponds to the letter symbol H
- 7. Co2 is made of ___ and two oxygen atoms
- 8. The mass of the reactants must ___ the products
- 11. something you should bring to class with you each day
- 12. a common example of a chemical change involving iron and oxygen
- 13. A change that results in a new substance
- 14. the measure of the amount of matter in an object
Down
- 1. matter cannot be created nor ___
- 2. a type of bond when electrons are gained or lost
- 3. physical changes include a change in __, size, or state of matter
- 4. the type of bond where atoms share electrons
- 9. the color of your unit 3 notes
- 10. anything that has mass and takes up space
- 11. Ice melting is an example of this type of change