Wednesday, December 2, 2009
Calcium in Water (Lab Report)
purpose: To examine the reaction of calcium and water
hypothesis:
Calcium will react very violently in water and sounds will be heard (i.e. pop, boom, etc.) This is because calcium is an alkaline earth metal, ad the metals in that family are highly reactive in water. Hydrogen and oxygen will be released because those are the only gases there and that metals are 'lost' from the experiment during my Mn+H2O2 experiment.
Variables:
-controlled: relighting flames (O2) + squeaky (H2)
-independent: calcium
-dependent: save size beakers
-how to measure dependent: use a test tube to capture the gas.
method: use the BC science 9 method on page 97.
results: see left picture
Sentence:
A white mysterious solid appears at the bottom of the beaker.
Evaluation:
- problem 1: collecting gas
- problem 2: catch calcium
Solution: - use a different method.
- use 2 smaler pieces of calcium
Questions #1 and 2
1. What changes have I observed? I observed a white solid at the bottom of the beaker and the liquid changing from green to purple due to the universal indicator.
2. What gas was produced? Hydrogen and oxygen gas was produced.
Conclusion: Hydrogen, oxygen, a white solid and a base is made. (Ca +H20 = CaOH)
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P.S. : This may sound unbelieveable, but since my antivirus reported that my computer had viruses, I was worried about the dangers of using an infected computer. Therefore, I had to use another computer which had no firefox to create this blog. That was why there was no subscripts and superscripts in the names of chemicals.
In conclusion, please disregard the lack of subscripts and superscripts.
Wednesday, November 11, 2009
My Element song lyrics
Title: School's element song
(Sing this the way you sing wheels on the bus)
We use argon for electric bulbs
House light bulbs, house light bulbs
We use neon for coloured light signs
Decoration
Sodium is part of table salt
Table salt, table salt
We drink calcium for our teeth
For our teeth
Copper is found in diamonds
Diamonds, Diamonds
Lead is supremely poisonous
But used in pipes
White phosphorus glows in the dark
In the dark, in the dark
Bromine is widely used for films
And for photos
We have oxygen for unseen air
unseen air, unseen air
We also have nitrogen for air
All for our lives.
This song sounds like one that you might hear
wheels on the bus, wheels on the bus
Each 2 lines describe an element
Certainly right
(Sing this the way you sing wheels on the bus)
We use argon for electric bulbs
House light bulbs, house light bulbs
We use neon for coloured light signs
Decoration
Sodium is part of table salt
Table salt, table salt
We drink calcium for our teeth
For our teeth
Copper is found in diamonds
Diamonds, Diamonds
Lead is supremely poisonous
But used in pipes
White phosphorus glows in the dark
In the dark, in the dark
Bromine is widely used for films
And for photos
We have oxygen for unseen air
unseen air, unseen air
We also have nitrogen for air
All for our lives.
This song sounds like one that you might hear
wheels on the bus, wheels on the bus
Each 2 lines describe an element
Certainly right
Thursday, November 5, 2009
Bohr model of the first 20 elements
Due to the technical limitations of my software, I will list the number of protons and neutrons of elements 2-20.
Element 2 (Helium): 2p 2n
Element 3 (Lithium): 3p 4n
Element 4 (Beryllium): 4p 5n
Element 5 (Boron): 5p 6n
Element 6 (Carbon): 6p 6n
Element 7 (Nitrogen): 7p 7n
Element 8 (Oxygen): 8p 8n
Element 9 (Flourine): 9p 10n
Element 10 (Neon): 10p 10n
Element 11 (Sodium): 11p 12n
Element 12 (Magnesium): 12p 12n
Element 13 (Aluminum): 13p 14n
Element 14 (Silicon): 14p 14n
Element 15 (Phosphorus): 15p 16n
Element 16 (Sulphur): 16p 16n
Element 17 (Chlorine): 17p 18n
Element 18 (Argon): 18p 22n
Element 19 (Potassium): 19p 21n
Element 20 (Calcium): 20p 20n
Monday, October 26, 2009
My "Grocery Store"
Here is my fake "Grocery Store".
Each row is organized by lightest to heaviest (in general).
Each column is organized by groups AND in lightest to heaviest (again, in general).
Words in brackets denote amounts whether in approximate or specific.
The legend for the colour-coding is obviously on the top of this blog:
Note that my shop's racks are screwed up,
but since this mart is imaginary, that is
fine.
Weight Mart (the name of my store)
Pc Paper Cups |
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| Ol Olives |
Kl Kleenex | Pa Pasta |
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| Or Orange | Su Sugar | Sh Swiss Cheese | On Onions |
Pp Paper Plates | Ce Cereal |
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| Ap Apple | So Sodas (Approx 500 mL) | Cc Che- ddar Cheese | Gb Green beans |
Pt Paper Towels | Sb Sandw- Ich bread | Fc Frozen Chicken
Wings | Ke Ketchup | Te Tea | Ju Juices | Cm Cake mix | Ba Banana | Cr Cream (500 mL) | Mo Mozza- rrela | Le Lettuce |
Bp Baking Powder | Fb French Bread | Fp Frozen Pork | Mu Mustard | Co Coffee | Ko Koolaid | Mm Muffin Mix | Av Ava- cado | Ch Cheesecake | Bu Butter | Cn Corn |
Tp Toilet Paper | Pb Pita Bread | Fd Frozen Dinner Beef | Sj Straw- Berry jam (2L) | To Tortillas | Ap Apple pie | Pm Pan- cake mix | Lj Lemon Jam | Sc Sour Cream (2L) | Mi Milk (4L) | Br Broccoli |
Dg
Deter- gent | Ri Rice (in packs) | Pe Peanut Butter |
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Wednesday, October 21, 2009
"What did you find out?" p.43
These are the answers to p.43 "What did you find out?"
1. The elements that conduct electricity are usually metals.
2. The elements that conduct electricity are usually nonmetals.
3. I would place every element that conducts electricity and/or is magnetic in the metal group. I would place every element that does not conduct electricity and is not magnetic in the non-metal group.
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