Across
- 7. accompanied by or requiring the absorption of heat.
- 9. a chemical reaction in which one element is replaced by another in a compound.
- 10. the starting materials in a reaction that undergo a chemical change to form a product.
- 11. a substance that is present at the end of a chemical reaction.
Down
- 1. the symbolic representation of a chemical reaction in the forms of symbols and chemical formulas
- 2. the chemical reaction in which a water molecule is eliminated from the reactant molecule.
- 3. two or more atoms connected by chemical bonds, which form the smallest unit of a substance.
- 4. the production of chemical compounds by reaction from simpler materials.
- 5. the process of burning something.
- 6. a substance that speeds up a chemical reaction or lowers the temperature or pressure needed to start one.
- 8. accompanied by the release of heat
- 10. the process by which chemicals interact to form a new chemical.