Chemistry Cross word

2. A reaction that releases heat to its surroundings.
4. Two or more atoms bonded together.
7. A compound composed entirely of hydrogen and carbon atoms.
12. A technique used to determine the concentration of a solution by adding a known volume of another solution.
14. The tendency of an atom to attract electrons in a bond.
15. A substance made from two or more different elements chemically bonded.
16. The calculation of reactants and products in a chemical reaction.
17. The process in which a substance gains electrons.

1. A solid formed in a solution during a chemical reaction.
3. Electrons in the outermost shell of an atom involved in bonding.
5. A reaction that absorbs heat from its surroundings.
6. A substance that dissociates into ions when dissolved in water, conducting electricity.
8. A substance that speeds up a chemical reaction without being consumed.
9. The number of atoms or molecules in one mole, approximately 6.02 x 10²³.
10. The total heat content of a system
11. The smallest unit of matter that retains the properties of an element.
13. The process in which a substance loses electrons.