Hi guys? i need help with my scavenger hunt for chem class, its 50 questions, and the items i need to find cant be illegal or dangerous, and you cannot duplicate...please help me! i already have most of these, but just need to verify and get the rest...thanks!

 

 

1.Hetrogeneous Mixture

2. Homogenous Mixture

3. An Alloy

4. A 5 ml satured solution of an ionic compound (show all work)

5. pure element

6. picutre of an excited atom ( i got this)

7. a metallic element

8. nonmetallic element

9. a metalloid

10. .300 moles of sodium bicarbonate (show work)

11. an element with +2 and +3 Oxidation states

12. A Pure substance

13. A compound

14. A Hydrate

15. a covalent compound

16. silicon dioxide (where do i find these))!?

17. a homogenous substance that is 42.1 % C, 6.42 % H, and 51. 4 % O

18. the insoluble product that forms from mixing sodium carbonate with calcim chloride when both are (aq)

19. an oxide of a transitional metal

20. a substance containing methyl salicylate

21. the amount of water whose temp would change by 15 C when its absorbed 150 joules of heat energy (show work)

22. substance with density of 8230 KG/M3 (to the third power)

23. a subtance formed from reacting silver chloride and zinc

24. a 0.00044643 Mol Sample of a gas (show work)

25.a substance that lowers the freezing point of water

 

 

And if you guys dont mind, help my partner as well, but its not as important, with these:

 

 

an endothermic change

an exothermic change

a hydrocarbon with a molecular mass more than 100G/mol

an isomer of 1-propanol

a synthetic polymer

a natural polymer

an arrhenius acid

an arrhenius base

a bronsted lowery base

a physical equilibrium system containing two phases

a chemical equilibrium system containing two or more phases

a binary covalent compound

a substance that can be used as a reactant in the fermentation reaction

a diatomic molecule

two substances that could be used as the electrodes in a voltaic cell

a substance produced by a redox reaction.

 

Thanks so much!!

what do you mean by 7. ? if its any you gan just do barium or aluminium

for 8 could be carbon or hydrogen. they arent metallic. neither is halogen