Hi I have to bring in items on this list from my home.... Maybe you guys can help me in identifying some of these items or just telling me how to go about finding some of them... 1. a model of a molecule (I could construct one?) 2. a result of a chemical change (hmm?? baking soda + salt or whatever?) 3. An allotrope of carbon (what is an allotrope?) 4. A pure substance (...hydrogen gas?) 5. A transition metal 6. An ionic compound (salt, right? but what else?) 7. Anything used to seperate a mixture (heat?) 8. A substance with a specific gravity of 1.0 (what does this mean?) 9. A sample of dilute acetic acid (hmm?) 10. A substance containing a halogen (dont know any either) 11. A substance that will change the indicator phenophthalein pink (dont know) 12. An inert gas (what is it?) 13. A neutralization equation (dont remember) 14. A substance containing only carbon, hydrogen and oxygen atoms (glucose? but how do I only bring that in) 15. A sample of silicon dioxide (which is?) 16. A gas that dissolves in water ( WHAT?) 17. An example of chemical potential energy (no clue) 18. A saturated solution - be prepared to show proof (hmm? saturated?) 19. A chemistry cartoon ( I can do this, lol) 20. A group 13 element (umm which one is common?) 21. A substance with a density of 11.4 g/mL (???) 22. A substance containing the element which has the electron configuration 1s2 2s2 2p3 (nitrogen? what to bring in?) 23. A job description for a career requiring chemistry ( lol easy ) 24. An example of an alloy (??????) 25. A substance that sublimes easily (water?) 26. A hydrocarbon (hmm) 27. An address of a website that contains a chemistry tutorial (lol) 28. A demonstration of a gas law (gas laws?) 29. A substance containing the compound C2H4 (what is this?) 30. A metal with a high melting point (Bonus for having highest melting point) Some of these things are review, some are new but if you guys could help me out with some that you might know it would be appreciated.