Across
- 5. Occurs when two or more molecules interact and the molecules change into a new substance
- 7. A chemical reaction between substances, usually including oxygen accompanied by giving off heat and or light.
- 8. When two or more substances join to form new substances with new chemical properties
Down
- 1. An indication of a chemical change when during chemical bonding, energy is released or absorbed making their surroundings hotter or cooler
- 2. Changes the form or appearance of a substance
- 3. An indication of a chemical change when new molecules created in a chemical reaction radiate light differently producing new colors.
- 4. A solid that suddenly appears in a solution and settles to the bottom, collects on another object, or makes the solution cloudy
- 6. Formed when gases produced in a chemical reaction are released