Across
- 1. Homogeneous mixture
- 3. Substances present at the beginning of a chemical reaction
- 5. Substances formed by a chemical reaction
- 6. Combination of protons and neutrons
- 9. Reaction in which energy is absorbed
- 11. Producing of new substances by changing the way atoms are arranged
- 13. Mixture of metal and one or more other elements
- 14. Indication of the amount of molecules that take part in a reaction
- 16. Substance that can accept one hydrogen ion
- 17. Scale in which acidity is measured
- 18. Positively charged particle
- 19. Discoverer of the law of conservation of mass
Down
- 1. Flour+Water
- 2. Substance that increases the rate of a chemical reaction
- 4. First periodic table publisher
- 7. Solid product
- 8. Substance that can donate one hydrogen ion
- 10. Group of atoms held together by covalent bonds
- 11. Uses chemical symbols to represent the atoms of the elements
- 12. Pair of shared electrons between two atoms
- 15. Reaction in which energy is released