Chemistry Crossword

2. The degree to which repeated measurements under unchanged conditions show the same results
6. The branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions
7. Any organic molecule that has an -OH group
9. The element that is a major component of all living things
10. A subatomic particle having a charge of -1
11. Gives off protons or H+ in water
12. When the forward rate of a reaction is the same as the reverse rate of a reaction
14. A neutral subatomic particle
15. A substance that lowers the activation energy of a reaction or speeds it up without being consumed by the reaction
18. The amount of matter in a substance
19. A theory used that predicts molecular shapes based on the assumption that electrons stay as far as possible from each other
20. Concentration expressed as number of moles of solute per kilogram of solvent
22. The number of moles of solute per litre of solution

1. Energy of motion
2. An insoluble solid formed by mixing in solution the constituent ions of a slightly soluble solution
3. The movement of particles from an area of higher concentration to one of lower concentration
4. The study of energy
5. The element that we use to strengthen our teeth
7. How closely a measured value agrees with the correct value
8. What humans need to breathe
12. A measure of the disorder or randomness in a system
13. What you do when the coefficients in front of compounds in a chemical equation are incorrect
16. A homogenous mixture of two or more substances
17. Accepts protons or H+ in water
18. A sample of matter composed of two or more substances, each of which retains its identity and properties
20. Avagadro's number (6.02 x 10^23) of anything
21. A subatomic particle having a charge of +1, found in the nuclei of atoms