what is fire? is it a gas or what? what is it made of(molecules, atoms, photons, etc.) and what kind of that(IE, what/which atoms, what/which molecules,etc.)
is white hot fire real? where the hell wo
how come it can measure mass AND weight. i would understand if it could only measure one of the two, but both?-What in the world is Yugioh (sp?)
A triple beam balance works by putting known masses in
pKb(CH3NH2) = 3.44
Answer to 2 decimal places.-if the pKb = 3.44
then the
Kb = 3.63 X 10^-4
CH3NH2s conjugate acid:
CH3NH3+ --> (CH3NH2) & H+
0.19 --> X & X
Ka = Kwater / Kb = (1 X 10^-14) / (3.63
Mark P for physical or C for chemical
Milk souring
Gasoline burning
Ice melting
Lighting a match
Water evaporating
Burning wood
Breath fogging a mirror
Cookin an egg
Bleaching a stain
I dont get th
In order to do this question i need to convert entropy to J/mol*Kelvin, can someone please tell me how?-Kelvins and degrees Celsius are the same size.Therefore J/mol∙Kis the same as J/mol∙°C.
Hi Kevin,
I am french (Boulogne sur mer 62200 - FRANCE)
Avogadros number : NA = 6,02•10^23 mole^-1
n(P2O5) = N(P2O5) / NA
n(P2O5) = 1.2•10^25/ 6,02•10^23
n(P2O5) = 19,93 mole of P2O5
. . . acco
Please help me with this question
Use the concentration and rate data presented in the table below to answer the following questions about the hypothetical reaction:
A + 2B + 4C 2D + E
Line: [A] (mo
(1) After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of 131I?
_______ days
(2) The half-life 32P is 14.3 days. If you currenlt have 17.9 g of 32P, how much 32P was present 2
a) Write a procedure that would follow to demonstrate the effect of increasingly higher concentrations of hydrochloric acid on its rate of reaction with antacid tablets. Can only use materials listed:
I was wondering if it was worth reviewing grade 11 chemistry. Are there similarities in the topics? Also discuss the level of difficulty. Thanks!-Well chemistry is a cumulative subject.It is all inter
Why is halogens group 17, when sometimes people call it group 7? I get confused with this please explain why.-Group 13-18 are all non-metals. There are 8 families in the periodic table.
column 1 = fam
Need help with grade 12 chemistry please!!?The following graph shows three different stresses on the reaction:
http://tinypic.com/r/ztf6fl/7
2NOCl(g) + heat
For each stress, numbered 3 on the graph
What is the quickest method in cooling a liquid?-Ice.....? Dry ice?-Put it under intense pressure, like several hundred atmospheres.Then remove the pressure very suddenly.You can instantly freeze a li
Do you think a neon light is more similar to an incandescent light or a flourescent light? Please explain your opinions-fluorescent, because incandescent is heating a metal filament until it glows, bu
