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Chemistry Definitions

Fill in the crossword and click on "Check" button to check your answer. If you need help, click on the "Hint" button and you will be given a letter. Click on one of the numbers in the crossword to reveal a clue. You can see all the clues at the bottom of the page.

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Across:

2. A process in which an electric current passes through a liquid, causing chemical reactions to occur.
6. The ability of an element to exist in more than one form.
7. A chemical reaction that gives off heat and light.
8. A measure of the resistance of a fluid (liquid or gas) to flow.
10. The destruction of a material caused by the chemical action of a gas or liquid.
12. A group of two or more charged or neutral atoms that have at least one unpaired electron.
14. The attraction that holds atoms together in groups of two or more.

17. One of the basic units of matter.
19. An atom or molecule that has an electric charge.
20. A chemical reaction in which a substance loses electrons.
21. Any molecule that can combine with identical molecules or certain other molecules to form a long, chainlike molecule called a polymer.

Down:

1. A chemical reaction involving water as one of the reacting substances.
3. A substance that dissolves another substance to form a solution.
4. A substance that absorbs certain types of energy and gives off part of that energy as visible light.

5. Any of two or more chemical compounds with the same number of each kind of atom but a different arrangement of those atoms.
9. A solid composed of atoms arranged in an orderly pattern that differs from the pattern in a crystal.
11. A chemical reaction in which a substance gains electrons.
13. The amount of matter in a particular volume of a substance.
15. A mixture of one liquid evenly dispersed in another liquid.
16. The elements fluorine (chemical symbol, F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
18. A large molecule formed by the chemical linking of many smaller molecules into a long chain.