CHEMISTRY CROSSWORD

2. A measure of how much matter is in an object.
3. n electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light.
7. requiring the absorption of heat.
9. Table a table of the chemical elements arranged in order of atomic number, usually in rows.
10. physical matter of which a person or thing consists and which has a tangible, solid presence.
11. The substances that result from this recombination of atoms are called the products of the reaction.
12. liquid mixture
14. When a substance (or a few substances) change into another substance.
15. In physics, the ability to do work

1. Any of a class of compounds that form hydroxyl ions (OH) when dissolved in water
4. relating to an atom or atoms.
5. a substance with particular chemical properties
6. something that can be dissolved
7. the release of heat.
8. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
12. the chemical element of atomic number 11
13. about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.