Across
- 5. when a metal is attacked by substances around it such as moisture
- 7. ____are shown on the left of the arrow
- 8. aerial oxidation of fats in food
- 9. removal of oxygen
- 10. this type of reaction results in releasing of energy
Down
- 1. this type of reaction involves absorption of heat
- 2. ____ are shown to the right of the arrow
- 3. when the total mass of the reactant is equal to the mass of the product the equation is said to be
- 4. sign for a chemical change
- 6. removal of hydrogen