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!!
