Chemistry 10-15-09 Law of Conservation of Mass Lab
CHEMISTRY – Great start to the nine weeks – good job on the lab today. So did you see the Law of Conservation of Mass today? Why not? What are you going to do differently in the lab tomorrow, and why do you think it will work? Here’s the intro lecture from today, and just in case you need it, the format for the Part 1 lab write up.
October 15th, 2009 at 9:31 PM
ms skinner, on the law of conservation of mass lab part 1, was the reason it didnt work because we didnt keep the gas in to mass it maybe?
[Reply]
Nik Jenkins C1 Reply:
October 16th, 2009 at 7:39 AM
I think the error could come from gas escaping, or from one of the samples not getting completely poured into the other beaker when mixing.
[Reply]
October 15th, 2009 at 9:56 PM
aristotle believed that only four elements existed.what were those four elements again??
[Reply]
Cody K. C1 Reply:
October 15th, 2009 at 11:40 PM
earth, wind, water, and fire
[Reply]
October 15th, 2009 at 10:01 PM
what was the name of the man who came up with the idea that all things are made up of smaller things?
[Reply]
Lindsey Barnes C1 Reply:
October 16th, 2009 at 5:24 AM
Democritus came up with the idea of atomos which is greek for atoms.
[Reply]
JeremyCarson Chem2 Reply:
October 16th, 2009 at 9:39 PM
AIRSTOTLE WAS THE MAN THAT SAID THAT ALL SMALL THINGS ARE MADE UP OF SMALLER THINGS OR WAS IT Democritus
[Reply]
October 15th, 2009 at 10:21 PM
This chapter looks interesting. Im looking forward to it.
[Reply]
October 15th, 2009 at 10:41 PM
This lab was very interesting Ms. Skinner. Thanks for explaining it so that i could understand it better.
[Reply]
October 15th, 2009 at 11:04 PM
The lab today was a little confusing but it was interesting.
[Reply]
October 16th, 2009 at 9:35 AM
How was it proved that atoms existed in the 1700s?
[Reply]
olga navarro Reply:
October 18th, 2009 at 9:15 PM
i like the last experiment, but i don’t understand ,why in the second part, the mass change??
[Reply]
October 16th, 2009 at 11:06 AM
i liked our lab except for the scale was kept on like going up and down and stuff
[Reply]
October 16th, 2009 at 4:01 PM
i would have never have thought that gas had a mass so thats very interesting
[Reply]
October 16th, 2009 at 6:59 PM
that was weird how much mass we lost in that lab just because of the gas
[Reply]
October 16th, 2009 at 7:22 PM
What were the components of the four original elements that Aristotle believed?
[Reply]
October 16th, 2009 at 8:39 PM
What time period was Democritus from again?
[Reply]
October 16th, 2009 at 9:04 PM
What language is the word atomos from?
[Reply]
Morgan Cox c-6 Reply:
October 19th, 2009 at 10:04 AM
latin
[Reply]
October 16th, 2009 at 9:56 PM
why did we have to mass it right after it reacted
[Reply]
Megan Grice C2 Reply:
October 18th, 2009 at 9:57 PM
aaron- cause the bottle may have leaked out the vinegar or gas put off by the reaction.
[Reply]
October 16th, 2009 at 10:52 PM
Would splitting an atom like a nuclear bomb be destroying matter and violating the law of conservation of mass?
[Reply]
October 16th, 2009 at 11:03 PM
Why did the baking soda and the vinegar react the way they did?
[Reply]
October 16th, 2009 at 11:04 PM
Why did the baking soda and the vinegar react the way they did??
[Reply]
October 16th, 2009 at 11:14 PM
okay so i know the four elements but someone remind me, what were the four properties?
[Reply]
October 19th, 2009 at 3:53 PM
why is it that people went on to believe aristotle’s ideas over democritis’s?
[Reply]
wesley pena hc-4 Reply:
October 21st, 2009 at 4:30 PM
i think it was because aristotle’s theory was the more popular idea. it was more traditional, and people were reluctant to believe something so different (democritus’ idea) from what they had been taught.
[Reply]