Across
- 4. The most common type of exothermic reaction
- 8. Graphite can conduct electricity due each carbon having a free _________
- 10. In diamond, each carbon is bonded to ______ other carbons
- 13. Metals are good conductors of heat and _________
- 14. Conduction of electricity requires _________ particles that are free to move
- 15. When energy is released in a reaction
- 16. During an endothermic reaction you will see a temperature ___________
- 17. Molecules are made of ________ atoms bonded together
- 18. Ionic solids can conduct in molten (liquid) or ________ state
- 20. Ionic solids are _______ which means they will break if a force is applied
- 23. Bond _______ takes in energy
- 24. Giant covalent networks have ______ melting points due to very strong covalent bonds
Down
- 1. Double bonds have more energy than single bonds? True or false
- 2. Attractive forces (bonds) between molecules
- 3. Atoms in giant covalent networks are held together by very strong _______ bonds
- 5. Bond ______ releases energy
- 6. Ionic solids are made of networks of ions with ________charges
- 7. During an exothermic reaction you will see a temperature ___________
- 8. When energy is absorbed in a reaction
- 9. Attractive forces (bonds) between atoms in a substance
- 11. the term for electrons that move between metal atoms
- 12. The shape of the bonds around each C in diamond or each Si in silicon
- 19. ________ intermolecular bonds in a solid means a low melting point
- 21. In graphite, each carbon is bonded to ______ other carbon atoms
- 22. Strong intermolecular bonds in a solid means a _______ melting point