Across
- 2. something that can be dissolved
- 3. a substance with particular chemical properties
- 5. requiring the absorption of heat.
- 8. The substances that result from this recombination of atoms are called the products of the reaction.
- 9. physical matter of which a person or thing consists and which has a tangible, solid presence.
- 11. A measure of how much matter is in an object.
- 12. When a substance (or a few substances) change into another substance.
- 13. In physics, the ability to do work
- 14. liquid mixture
- 15. the chemical element of atomic number 11
Down
- 1. Table a table of the chemical elements arranged in order of atomic number, usually in rows.
- 3. relating to an atom or atoms.
- 4. about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- 5. the release of heat.
- 6. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
- 7. Any of a class of compounds that form hydroxyl ions (OH) when dissolved in water
- 10. n electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light.