Chemistry - October 2006

2006-10-26 19:40:35 · 3 answers · asked by Alvin 1

A. +
B. indicates number of atoms
C. 1:8 expresses this
D. C6H12O6
E. mass of O
F. not chemically combined
G. mass of H2O
H. standard for atomic masses
I. mass of CO2
J. two or more elements chemically united

2006-10-26 17:59:58 · 2 answers · asked by ian y 1

A. +
B. indicates number of atoms
C. 1:8 expresses this
D. C6H12O6
E. mass of O
F. not chemically combined
G. mass of H2O
H. standard for atomic masses
I. mass of CO2
J. two or more elements chemically united

2006-10-26 17:58:52 · 3 answers · asked by ian y 1

A. +
B. indicates number of atoms
C. 1:8 expresses this
D. C6H12O6
E. mass of O
F. not chemically combined
G. mass of H2O
H. standard for atomic masses
I. mass of CO2
J. two or more elements chemically united

2006-10-26 17:55:47 · 3 answers · asked by ian y 1

A. +
B. indicates number of atoms
C. 1:8 expresses this
D. C6H12O6
E. mass of O
F. not chemically combined
G. mass of H2O
H. standard for atomic masses
I. mass of CO2
J. two or more elements chemically united

2006-10-26 17:51:23 · 3 answers · asked by ian y 1

A. +
B. indicates number of atoms
C. 1:8 expresses this
D. C6H12O6
E. mass of O
F. not chemically combined
G. mass of H2O
H. standard for atomic masses
I. mass of CO2
J. two or more elements chemically united

2006-10-26 17:49:57 · 2 answers · asked by tom y 1

Thanks

2006-10-26 17:31:04 · 5 answers · asked by ola826 1

2006-10-26 17:20:45 · 3 answers · asked by kim n 1

I'm doing a project and NO ONE can answer this question!!!! If I put baking soda and salt into boiling water it makes bubbles. Why?? IS there something in the Baking Soda and Salt that makes it act this way?? Please help me. =)

2006-10-26 17:20:16 · 3 answers · asked by Anonymous

A piece of iron (400. g) is heated in a flame and then plunged into a beaker containing 1.00 kg of water. The original temp of the water was 20.0 degrees Celcius, but it is 32.8 degrees after the iron bar is put in and thermal equilibrium is reached. What was the original temp of the hot iron bar?
equation: mass * enthalpy * change in temp
water: 4.184 J/(g*C)
iron: 0.451 J/(g*C)

I can calculate the heat of the water, but when I try to set up the equation for the iron, I get two variables:
q(Fe) = 400. g * .451 J/(g*C) * (32.8 C - initial temp)

did i do something wrong? or how can i solve this?

2006-10-26 17:09:44 · 1 answers · asked by Anonymous

Ex: 1-propanol
2-propanol

2006-10-26 16:33:10 · 5 answers · asked by ChaseMakesMeSmile 2

lithium oxide+ water--> lithium hydroxide

2006-10-26 16:17:17 · 2 answers · asked by lil_flirt_57<3 2

2006-10-26 16:10:43 · 4 answers · asked by pixela007 2

NH3 Kb=1.8x10^-5
CH3NH2 Kb=4.38x10^-4
C2H5NH2 Kb=5.6x10^-4
C6H5NH2 Kb=3.8x10^-10
C5H5N Kb=1.7x10^-9

2006-10-26 16:09:32 · 1 answers · asked by pixela007 2

i'm doing a sci. fair project and my teacher needs to know how i will measure the amount of gas in a balloon. i need a measurement like cm. or gallons and how i would get the measurement.

2006-10-26 16:06:36 · 2 answers · asked by charlyn s 1

Can you explain how you got the answer?

2006-10-26 16:05:57 · 3 answers · asked by Lightning 1

2006-10-26 16:04:40 · 2 answers · asked by Lightning 1

Can you explain how you got the answer please?

2006-10-26 16:03:29 · 2 answers · asked by Lightning 1

2006-10-26 16:03:18 · 4 answers · asked by chemnoob 1

beryllium is an element

2006-10-26 16:01:39 · 5 answers · asked by codecena1 1

would be formed when these oxides react with water?

bromine monoxide,
nickel(II) oxide,
potassium oxide,

thanks so much for your help!:)

2006-10-26 15:35:21 · 4 answers · asked by lil_flirt_57<3 2

2006-10-26 15:29:59 · 6 answers · asked by cheesesticks320 2

2006-10-26 15:28:04 · 4 answers · asked by Tony 1

(a) What is the minimum frequency of light necessary to emit electrons from cesium via the photoelectric effect?_________s-1

(b)What is the wavelength of this light? ______nm

(c) If cesium is irradiated with light of 416 nm, what is the maximun possible kinetic energy of the emitted electrons? ______J

Please help..ive been working on this for a while, and cant seem to get the right answer!!

2006-10-26 15:07:18 · 1 answers · asked by lsubetty 2

2006-10-26 14:55:33 · 3 answers · asked by cheesesticks320 2

2006-10-26 14:52:31 · 1 answers · asked by Larson D 1

Give coordinates of the point where the line for equation crosses the y-axis.
y = 3x + 4
Also write equation for the line passing through each pair of points. (3,8), (2,6)

2006-10-26 14:49:42 · 2 answers · asked by Anonymous

2006-10-26 14:37:49 · 1 answers · asked by Larson D 1

2006-10-26 14:25:08 · 2 answers · asked by koppa 1

2006-10-26 14:17:51 · 5 answers · asked by cheesesticks320 2