Chemistry crossword 1

1. A Group 2 metal that reacts more vigorously with water than magnesium
4. A reaction involving simultaneous oxidation and reduction
9. The number of bonds formed between ligands and a central metal ion
11. Uneven distribution of charge within a bond or molecule
13. The heat energy change at constant pressure
16. The ability of an atom to attract a bonding pair of electrons
18. Gain of electrons
19. A technique used to determine the concentration of a solution
21. The energy required to remove one mole of electrons from one mole of gaseous atoms

2. A regular repeating arrangement of ions in a solid
3. The principle predicting how a system at equilibrium responds to change
5. A compound formed from a central metal ion and surrounding ligands
6. The minimum energy required for a reaction to occur
7. The calculation of reacting quantities using balanced equations
8. A soluble base that produces OH⁻ ions in solution
10. Describes electrons that are spread over several atoms
12. A species that donates a lone pair to a central metal ion
14. A Group 7 element that forms -1 ions
15. A Group 2 metal that reacts slowly with cold water
17. The state in a reversible reaction where forward and reverse rates are equal
20. A measure of disorder or randomness in a system
22. Loss of electrons