Battery #61

Batteries

#61- An electrochemical cell with half reactions.
- A electrochemical cell is something that gives off energy. Batteries give off energy. In Zn-Cu batteries the two half cells make an oxidizing- reducing couple. Half cells are placing a piece of reactant in an electrolyte solution.
-Cite: http://www.science.uwaterloo.ca/~cchieh/cact/c123/halfcell.html

Milk #21

Milk

#21- Exactly 1.01 mL to the three significant digits of a liquid other then water.
-I used milk, and i measured it out into a test tube and got to exactly 1.01 mL.
-Cite: Notes

Sugar Water #48

Hummingbird food= sugar water

#48- A sugar- water solution which would boil at 101.2 degrees C and 1 atm.
-Hummingbird food is made out of sugar dissolved into water, so its sugar water. I can boil at 101.2 degrees C and 1 atm. To make this I had to boil the water and it got to 101.2 degrees C.
-Cite: Notes/ personal experience

Methane #30

Propane tank

#30- A covalently bonded substance with an accurate description of the shape of the nolecule including cond angles.

-Methane and propane are basically the same thing. Methane is a covalently bonded substance, its formula is CH3OH. Its bond angles are 109.9 degrees and it is shaped like a ball with three sticks coming out of it. Almost like a sun with rays coming out of it. Its bonds are 108.70 pm long. Its apperance is a colorless gas. 

-Cite: http://www.eoearth.org/article/Methane

Oxygen #15

In this picture i was breathing OXYGEN.

#15- A sample of gas labeled with its density at 25 degrees C and 746 Torr. Show calculations.
-I used oxygen and i found its volume.
-Calculations on paper turned into box.
-Cite: Notes

Tar #62

Pavement

#62- A substance composed of nonpolar molecules.
-Pavement is made of tar substances and tar is a nonpolar molecule. Nonpolar molecules is a bond between 2 nonmetal atoms with the same electronegativeity.
-Cite: http://users.stlcc.edu/gkrishnan/polar.html

Neon sign #14

Neon Sign

#14- A sample of gas whose atoms have an average velocity less then that of oxygen atoms. Show calculations.
-Hydrogen is found in neon signs. Hydrogens velocity is less then oxygen's.
-Cite: Notes

Antifreeze #19

Antifreeze

#19- A catalyst with its formula and a balanced equation where it is used.
- A compound used in antifreeze is called ethylene gylcol (C2H6O2). When being used in automobiles it reacts with water, its equation is: C2H4O2 + H2O -> HO-CH2CH2-OH
-Cite: http://wiki.answers.com/Q/What_is_the_chemical_formula_for_antifreeze

Silicone #58, 29

Silicone

#58- An alloy labeled as to constituents and percent composition.
-Silicone is an alloy that is a water resistent sealent.
-Cite: Notes

#29- An organic compound with a six- membered ring. Give the strucural formula and the condensed molecular formula.
-Silicone is a type of rubber, and rubber is a compound with a six membered ring.
-Cite: Notes

Aspirin #56

Aspirin

#56- A substance containing acetylsalicylic acid.
- Acetylsalicylic acid is the medical term for aspirin. Aspirin is an inflammitory drug that is usually taken in tablet form.
-Cite: http://www.thefreedictionary.com/acetylsalicylic+acid

Blueberries #52

Blueberries

#52- An acid/ base indicator. Tell what color it is in acid and what color it is in base.
-Blueberries have a blue based color but when put in acid they become a reddish color.
-Cite: http://antoine.frostburg.edu/chem/senese/101/acidbase/faq/household-indicators.shtml

Graduated Cylinder #54

Drawing of graduated cylinder

#54- Illustration of a graduated cylinder which contains 25.3 mL of liquid to which a rock with a volume of 7.5 mL has been added.
-I drew a graduated cylinder and drew a line where the water was originally at 25.3 mL. The i added volume of the rock at 7.5 mL to the water volume and got 32.8 mL. Then i drew a line where the new water level was at 32.8 mL.
-Drawing on paper turned into box.
-Cite: Graduated cylinder from classroom lab.

Test Tube #50

Drawing of Test Tube

#50- A drawing of an instrument used to measure small volumes of a liquid accurately.
- I drew a small test tube. The notches go up by 2's.
-Drawing on paper turned into box
-Cite: Test tube in classroom lab.

Toilet Cleaner #47

Toilet Cleaner

#47- A substance which would be nearly 100% ionized in a dilute solution. Give the ionization equation.
- Hydrochloric acid (HCl) is a strong acid which is nearly 100% ionised in solution. HCl is a main component in toilet bowl cleaners. H2O + HCl -> H3O + Cl
-Cite: http://www.chemguide.co.uk/physical/acidbaseeqia/acids.html

Bleach #45

Bleach

#45- A solution of NaClO labeled with its commercial name, % concentration and molarity
- NaClO is called sodium hypochlorite, it is the chemical used in household bleach. Its molarity is 74.4442 g/mol and its percent concentration
-Cite: Notes

Pencil #41, 46, 25

Pencil

#41- An element that is used as a lubricant
- The element graphite is widely used as a lubricant. Graphite is found in pencils.
-Cite: Notes

#46- An element that has more thean one isotope and can exist as an ion.
-Carbon has more then one isotope and can be an ion. Carbon is found in graphite which is found in pencils.
-Cite: http://answers.yahoo.com/question/index?qid=20071129180214AArpmJE

#25- A sample of matter containing a radioactive element. Give decay equation.
-The lead in pencils is a radioactive element. Its decays in 21 years and its equation is 82(210)Pb -> 80(206)Hg + 2(4)He
Cite: http://wiki.answers.com/Q/What_is_the_nuclear_decay_equation_for_lead-210
      - http://www.buzzle.com/articles/list-of-radioactive-elements.html

Cement #37

Cement

#37- A basic anhydride. Give the equation of the item reacting with water.
-Calcium oxide (CaO) is a basic anhydride and a metal oxide. Its balanced equation is Ca + 2H2O -> CaOH2 + H2. Calcium oxide is a key ingredient in the process of creating cement.
-Cite: http://answers.yahoo.com/question/index?qid=20081229144624AAjfcIU

Bandaids #34

Bandaids

#34- A saturated, dilute solution
-Bandaids have Alodine in them (AgCO) which is a dilute solution.
-Cite: Notes

Baking Soda #33, 60

Baking Soda

#33- A basic solution labeled with its [OH- ]
-The pH level of baking soda is 0.01 and it is a basic solution of NaHCO3
- Cite: http://antoine.frostburg.edu/chem/senese/101/acidbase/faq/household-indicators.shtml

#60- A solid whose solution will have a pH < 7
-Baking soda can higher a pH level, its pH level is < 7.
-Cite: Notes

Gatorade #31

Gatorade

#31- A compound which, when completely oxidized, would yield only CO2 and H2). Give balanced equation.
-Gatorade has a lot of glucose in it, and glucose has a balanced equation of C6H12O6 + 6O2 -> 6CO2 + 6H2O + heat.
-Cite: http://www.3rd1000.com/chem301/chem302x.htm

Detergent #24

Detergent

#24- A solid substance which does not dissolve in water, does not conduct electricity, and does not melt below 1500 degrees C. Formula and bond type.
-Boron is found in detergent. Boron is a solid that has a melting point of 2,092 degrees C. Its formula is B. Boron is used widely as a cleaning and bleaching agent in detergent soaps.
-Cite: http://www.etiproducts.com/boron-in-detergents-soap-15s.htm

Fertilizer #22

Fertilizer

#22- A substance with ionic bonds. Give correct formula and ionization equation.
- The nutrient elements of fertilizer are directly bonded together with ionic bonds. (NH4NO3)
-Cite: Notes

Hydrogen Peroxide #20

Hydrogen Peroxide

#20- A compound with its empirical formula which is different from its moelcular formula.
-The molecular formula of hydrogen peroxide is 2(HO) and the empirical formula is just HO.
-Cite: Notes

Copper Penny #64

Penny

#64- An example of transition metal.
-Copper is in pennies and copper is a transition metal. On the periodic table copper (Cu) is located in the "d-block" along with all the other transition metal. A transition metal is an element whose atom has an incomplete d-sub shell.
-Cite: http://www.nwma.org/education/copper_facts.htm

Foam Cup #65

Foam Cup

#65- A commercial example of polystyrene.
-Polystyrene is a type of plastic that is commonly used in foam cups. They're good thermal insulators and are not recycleable.
-Cite: http://commercial.owenscorning.com/products/foam/

Poppy Seeds #59

Poppy Seed Container

#59- An alkaloid
-An alkaloid is a group of naturally occuring chemiscal compounds, these compounds are mostly basic nitrogen atoms. Poppy seeds are alkaloids.
-Cite: http://www.efsa.europa.eu/en/efsajournal/pub/2405.htm

Salt #26, 40, 49

Salt

#26- A food additive and its purpose.
-People often add salt to their dishes to season them and add a salty taste. Salt is composed of primarily sodium choride (NaCl). The taste of salt is a basic human taste.
-Cite: http://www.saltinstitute.org/Issues-in-focus/Food-salt-health/Iodized-salt-other-additives/Additives-use-in-salt

#40- 0.10 mole of a compound other than water. Show calculations to verify this.
- I found the molar mass of NaCl by multiplying 0.10 moles by its total mass which was 58.48 grams and got 5.84 grams NaCl.
-Calculations on paper turned into box.
-Cite: Notes

#49- The mass of any salt needed to make 250 mL of a 0.200 M solution. Show calculations which verify this.
-First, I converted 250 mL to liters which i got 0.250 L. I know that .05 moles of salt will make 0.25 Liters of a 2M solution. Then, to et it in grams i multiplied the mass of NaCl by .05 moles and got 2.9215 grams NaCl.
-Calculations on paper turned into box.
-Cite: Notes

Spit #27

Spit on pavement...

#27- An enzyme
- Spit has an enzyme called salivary amylase. It breaks starch down into sugar while you chew. If you chew something with starch in it long enough it will begin to taste sweet.
-Cite: http://www.ewart.org.uk/science/patterns/pat5.htm

Chocolate #18

Chocolate

#18- A commerical source of phenylethylamine.
-Phenylethylamine is found in chocolate after microbial fermentation. I is a neurotransmitter realsed when eating chocolate.
-Cite: My notes.

Propane #16

Propane tank

#16- An alkane
-Propane is an alkane, and it is easily determined by the ending of the name "...ane." It contains a three carnon singly bonded molecule, its molecular formula is C3H8. Propane is normally a gas, but when compressed it is a transportable liquid. It is commonly used as a fuel for engines, barbeques and cntral heating. This is called a liquified petroleum gas.
-Cite: http://hyperphysics.phy-astr.gsu.edu/hbase/organic/alkane.html

Soda #9

"TAB" Brand of soda

#9-A compound with at least 3 different elements.
-Carbonic acid has 3 different elemnts (H2CO3), it has hydrogen, carbon, and oxygen. Carbonic acid is used in sodas to make the soda fizzy, it also helps keep the flavor in the soda strong. This is a key component to soda so it can be stored for longer periods of time.
-Cite: http://www.wisegeek.com/what-is-carbonic-acid.htm

Wooden Cube #8

Wooden Cube

#8- A sample of a solid whose density you have determined. Describe procedure.
-I used a wooden cube and I measured its width/height/ length. I found its volume by multiplying its width/height/length, then I weighed it on a scale and then dived mass by volume to get its density. its density turned out to be 0.7357 g/cm cubed.
-Equation on a paper turned into box.
-Cite: My notes

#39- A solid labeled with its volume in cm cubed and m cubed.
-I used the same wooden cube to do this equation as well. To find the volume in both cm and m i had to convert the measurements to meters because the cube was only a few centimeters long. I used a conversion factor of 1m= 100cm. After converting all three measurements I multiplied them an got volume in meters. It was very small and was about 0.0000028 meters.
-Equation on a paper turned into box.
-Cite: My notes

Water #6, 57, 28, 17

Tap Water

#6- Material which completes the following equation:
               Na2CO3 + 2HCl -> 2NaCl + ____ +CO2
-Water (H2O) completes the equation. The hydrogen comes off of the hydrocloric acid and transforms into water and carbon dioxide.
-Cite: My notes on chemical reactions.

#57- A substance that is used in a fire extinguisher.
-Water is a ke imponent in fire extinguishers, water has always been known for putting out fires. It is also the most common ingredient in all types of extinguishers. It is used in conjunction with other chemicals/ componds to extinguish the fire at its base.
-Cite: http://www.ehow.com/about_5372541_ingredients-fire-extinguisher.html

#28- A substance with weak can der Waals forces.
-Water has weak can der waals forces because it can move easily between the 3 stages of gas, liquid, and solid.
-Cite: http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/waal.html

#17- A substance used in commercial antifreeze, labeled with its chemical formula.
-Water is a common ingredient in antifreeze, it acts as a lubricant. (H2O)
- Cite: //www.recycool.net/index.php?option=com_content&id=14:antifreeze-facts&catid=10:antifreeze-facts&Itemid=10

#32- A sample of an element with more than 5 electrons in its outer shell.
-Iodine has 7 electrons on its outer shell, and is found in tap water.
-Notes

#53- Sample of an element containing at least 2 isotopes.
-Hydrogen is in water and hydrogen has 3 isotopes Hydrogen-1 with no neutrons, Hydrogen-2 with one neutrons, and Hydrogen-3 with two neutrons
-Cite: http://answers.yahoo.com/question/index?qid=20060910151820AA1fwWr

Wintergreen Gum #1

Wintergreen Gum

#1- A substance containing the ester, methyl salicylate
-It is a naturally produced chemical in evergreen plants that they extract and use in various products. It is a wintergreen oil that they put in some gums. Although, it is toxic in its pure formed, it adds a minty taste when used in gum.
-Cite: http://www.anandaapothecary.com/aromatherapy-essential-oils/wintergreen-essential-oil.html

Grapes #3

Grapes

Also blurry.....

#3- A substance containing tartaric acid
-Tartaric acid is a white crystalline organic acid, it is natrally produced in grapes. It is usually added to other foods to give it a sour taste.
-Cite: http://www.greatplainslaboratory.com/book/bk5sect2.html

Photo Paper #2

Photo Paper

Sorry a litle blurry!!

#2- An object containing a silver halide emulsion.
-Silver halude emulsion is found on photo paper. It is what gives it the glossy cover. Photographic emulsion is a light-sensitive colliod, which is like gelatin. The silver halide emulsion is a primary element for a light capture photo. When it is exposed to light the tiny crystals create a "latent image" that is amplified in photography developement. It helps the process of developement of the image that is being printed on the page.
-Cited: http://www.kodak.com/US/en/corp/researchDevelopment/whatWeDo/technology/chemistry/silver.shtml

Aluminum Foil #4, 7, 11

Aluminum Foil

#4- A sample of matter which contains only one kind of atoms. Identify the kind of atom with its symbol and atomic mass.
-Aluminum foil is an element. It is located on the periodic table of elements. Elements are is something that contains only one type of atom. Its symbol is: Al, and its atomic mass is: 26.98 grams.
-Cite: I found this information in my notes on my periodic tables.

#7- A sample of an element which could be the "X" in the formula X2O3
-If you plug in aluminum (Al) to the formula you get Aluminum oxide. (Al2O3) And aluminum is found in aluminum foil which is in the picture above.
-Cite: I found this information in my notes

#11- A sample of matter which contains atoms with an oxidation state of +3.
-Aluminum has an oxidation state of +3. When it looses 3 electrons it becomes positive. The complete formula is Al2O3
-Cite: I found this information in my notes