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April 16, 2014

Search: Chemistry -Flame colors (check+help)

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Chemistry -Flame colors (check+help)
What are the characteristic flame color for sodium, potassium, barium, copper, strontium, and calcium? Explain why? Ans: i know the flame colours, but for the explain why, could the below be a possible answer? The characteristic flame color is due to the shift in the energy ...
Monday, February 14, 2011 at 3:26am by Farah

Chemistry
1. A flame heats the sample and may produce a flame color that helps us detect the presence of a certain element. Some elements cause the flame to glow a certain color which tells us that element is present in the sample. For example, a very bright yellow-orange flame color ...
Thursday, July 10, 2008 at 1:58am by GK

Flame Colors - Chemistry
I've searched the internet but I can't find out what color flame a Nickel (or even better NiSO_4) solution will produce when burned. As well, does Aluminum (Al(SO_4)_3 ) have a flame color from the flame test? Don't know sorry!Wih I could help!Can you help me though? Thanks ...
Monday, November 6, 2006 at 8:11pm by J.M.

chemistry
The flame color will be visible as a reddish violet color. The blue glass, typically a cobalt blue glass, will filter out extraneous colors, such as the intense yellow color of a sodium flame. The intense yellow color of the sodium flame will mask the potassium flame unless ...
Saturday, June 14, 2008 at 3:32am by DrBob 222

Flame Colors - Chemistry
lame
Monday, November 6, 2006 at 8:11pm by Anonymous

Chemistry -Flame colors (check+help)
Your answer sounds like lawyer talk. The colors represent specific energy transitions, which are characteristic of specific electron energy levels in each element. Each element has a characteristic outer electron orbital pattern (see the periodic table). So, the outer ...
Monday, February 14, 2011 at 3:26am by bobpurslley

Chemistry
We did a flame test today to see what substances produce what colors when burned. Can you please explain... Why each of the different elements have a different atomic emission spectrum? Would the flame tests be useful for detecting individual elements present in a mixture of ...
Tuesday, September 17, 2013 at 8:52pm by Sarah

Flame Colors - Chemistry
green like a bogey
Monday, November 6, 2006 at 8:11pm by Anonymous

chemistry -------------chemistry
If a flame on the candle burns red , how does energy of that flame compare to that of the Bunsen burner flame ? and why ? ans:The Bunsen burner flame has higher temperature than candle’s flame . Because flame of candle emit red ,and red has the least energy in visible light.
Thursday, October 11, 2012 at 12:55am by Maria

Flame Colors - Chemistry
pree sure its like an orange last time i checked :P
Monday, November 6, 2006 at 8:11pm by oh..ya know

chemistry
we are doing about the flame test. we are using some metals like barium chloride,calcium chloride,copper,lithium,opotassium sodium and strontium. the flame of Colors are yellow-orange,red- orange,green-blue,red,pink,orange and red.We had to guess wat color is going to be?
Tuesday, October 19, 2010 at 8:25pm by Kassandra

Honors Chemistry
We did a lab in class on Friday where we stuck a metal loop in various chemicals and stuck it in the flame of a Bunsen burner and we observed the flame's colors as the different metals went in. For every lab we do, we have to write a writeup which involves a graph. How could I...
Sunday, September 20, 2009 at 11:36pm by Emily

Chemistry
Regarding Flame Tests, why do you have to subject the sample to a flame? Which part of the Bunsen Burner is hottest? Why is it necessary to hold the loop in this part of the flame? What do you think will happen if you perform the flame test on a solution with more than one ...
Thursday, July 10, 2008 at 1:58am by Chu

Chemistry
Regarding Flame Tests, why do you have to subject the sample to a flame? Which part of the Bunsen Burner is hottest? Why is it necessary to hold the loop in this part of the flame? What do you think will happen if you perform the flame test on a solution with more than one ...
Thursday, July 10, 2008 at 1:58am by Chu

Chemistry -Flame colors (check+help)
The colours that we see for an element in a flame is a mixture of the colours of the lines from emission spectra. Each line colour results from an electron 'falling' from a higher energy level to a lower energy level. Because the spacing of the energy levels is different for ...
Monday, February 14, 2011 at 3:26am by Dr Russ

Chemistry
What colors would you expect to see in a flame for the following compounds: potassium chloride, potassium nitrate, and potassium sulfate. Explain your answer
Thursday, April 8, 2010 at 7:02pm by Sarah

Chemistry
Hii! I have a question: So the flame photometer uses a natural gas flame (1800 oC), what if it uses acetylene - nitrous oxide flame which is ~3000 oC, what would happen to the emission intensities? Thanks!
Monday, August 16, 2010 at 12:49am by Anonymous

Clinical Chemistry
Thank you... Any ideas on ISE vs. flame photometry? I was thinking that maybe flame photometry comes out consistently slightly lower because it is hard to standardize? I mean, its hard to get the exact temperature of the flame to be precise (and accurate)?
Tuesday, April 9, 2013 at 8:57pm by Jesse

Chemistry
There's a test tube filled with a gas, and you bring a flame to the mouth of the tube. Many things could happen... The flame might get snuffed out and there might be a popping sound... so how can you find the density of that gas in relation to the air around it using the ...
Sunday, October 21, 2007 at 1:30pm by amaliyah

chemistry
what are the advantages of using a blue flame instead of a yellow flame for heating objects on a bunsen burner?
Friday, February 15, 2008 at 4:55pm by ss

chemistry
when you hold a hydrogen filled pipet bulb horizontally with its mouth about 1 cm from a falme while gently squeezing what would you observe? a. the flame goes out b. a gentle pop and the flame may have been blown out c. the flame got bigger d. nothing happened I think that ...
Monday, May 10, 2010 at 9:24pm by grace

English
Colors can change our feelings. What do you think? I agree to the statement. Colors can really change our feelings. For example, red makes use feel more active. I think that is the correct expression. Our mood can be changed by colors. For instance, purple makes us sleep well...
Monday, August 24, 2009 at 12:17am by John

physics
Yes, it emits a bluish light, but not very much. You should be able to see the flame with the lights out. The light is emitted mostly by unstable C2 and CN molecules in the reaction zone. Those species disappear above the flame. If you do not premix the air with the gas below ...
Thursday, January 5, 2012 at 3:39am by drwls

Physics
Suppose a flame of a gas burner stove emits light just like a blackbody.The flame appears blue,emiting most of the light as a wave length of 475 nanometers. what is the temperature of the flame. How do I solve this?
Friday, October 21, 2011 at 3:11pm by EBS123

chemistry
DrBob222 is wrong.potassium burns with lilac flame when react with water.(of cuz if the reaction is too small,lilac flame is difficult to be observed)
Wednesday, October 13, 2010 at 1:33pm by Kon

chemistry
Neither nitrate ion nor chloride ion impart a color to a flame in the flame test; however, nitrates and chlorides are easier to volatilize.
Sunday, September 12, 2010 at 11:08pm by DrBob222

Chemistry
Light blue flame inside a Dark blue flame
Tuesday, October 13, 2009 at 9:08pm by Kate

chemistry ................chemistry
A mixture of Na and K give a yellow color in the flame. The Na yellow flame completely blocks the violet from K. Using a Cobalt glass filters the yellow out and leaves a reddish color for K. Did you not see this when you did the experiment?
Sunday, October 14, 2012 at 8:47pm by DrBob222

Chemistry
What adjustment would you make to the Bunsen burner (a) to correct a flame with an orange tip (b) to correct a ragged, noisy flame? ..I always get the purpose of the gas inlet / air inlet mixed up
Wednesday, January 19, 2011 at 9:12pm by John

Chemistry
Frankly, I think the nitrate ion has little to do with it other than helping the salt volatilize in the flame. Generally, chlorides or nitrates are used for the flame tests of these cations and its done because those salts volatilize a little easier than some of th others.
Tuesday, December 16, 2008 at 8:34pm by DrBob222

art-colors
what are all the different colors that mix to make other colors? like how when you mix red and yellow you get orange...what are all the other colors? well green + blue= brown yellow + blue= green red + blue = purple is that all? Yes, from what I've seen on a website that I can...
Wednesday, August 15, 2007 at 10:34pm by amanda

math, bobpursly
I dont know what the -4)colors means. Models*exterior colors*upholsterytypes*numberinteriour colors. Multiply them out. what do i have to do to solve for this one i have no idea i was low on the first try... An uto mobile manufacturerr produces 7 models, each available in 6 ...
Friday, July 6, 2007 at 12:56pm by bobpursley

ENERGY
When a candle is lit? The wick burns, and vaporizes paraffin (wax) below it. The paraffin vapor also burns as it mixes with air outside the yellow flame. The light comes mostly from carbon particles inside the flame, which have not burned yet. They burn up later as they pass ...
Wednesday, March 12, 2008 at 12:39pm by drwls

Chemistry
It depends upon what atomic or ionic lines the photometer is looking at, and what is added to the flame. Generally speaking, a hotter flame will be brighter, but not at all wavelengths. Ion lines will tend to be favored over neutral atomic lines at higher temperature.
Monday, August 16, 2010 at 12:49am by drwls

Physics
I had posted this question once before, but no one helped me on this one. So Iam posting this question again. Suppose the flame of a gas burner stove emits light just like a blackbody. The flame appears blue emiting most of the light at a wave length of 475 nanometers. What is...
Friday, October 21, 2011 at 3:07pm by KatieSc

Math
Tonya and Lauren ate designing a soccer uniform. They want to use two colors on the shirt. Their colors are green, orange, yellow, purple, blue, and silver . How many ways can they choose two colors?
Wednesday, September 12, 2012 at 7:11pm by Anonymous

Chemistry
1. Describe the relationship between the color change of the filament with temperature, and the colors in the observed spectrum of white light. 2. Order the colors of the rainbow according to the amount of energy needed to produce them, from lowest to highest.
Tuesday, May 8, 2012 at 5:43pm by Emily

statistics
In a bowling league, the probability that the uniforms are all 1 color is 0,45, that 2 colors are used is 0.35, and that 3 or more colors are use is 0.20. if a sample of 12 uniforms is selected, find the probability that 5 contain only 1 color, 4 contain 2 colors, and 3 ...
Monday, May 16, 2011 at 5:38pm by Michelle

physics
Why is it that a computer monitor or a TV screen can produce millions of colors using only the 3 primary additive colors? Likewise, how can a printer print millions of color using only the colors of magenta, cyan, and yellow? How are the primary additive and the primary ...
Wednesday, September 8, 2010 at 3:43pm by Anonymous

science
It isn't the flame that is reacting with Cu. Its the air. The flame simply raises the temperature to make the reaction with oxygen of the air a little faster. copper + oxygen ==> copper oxide. You will have a little problem here (I would have a little problem, too) because ...
Monday, October 6, 2008 at 9:35pm by DrBob222

CHEMISTRY
I don't think it's a matter of which ions are excited versus those that are not as much as it is the color. Atoms/ions that are used in flame emission are there primarily for three reasons: 1. They are easily volatilized in a flame and 2. They emit energy that places the ...
Sunday, October 27, 2013 at 1:41pm by DrBob222

chemistry
Yes, light colors reflect more heat than dark colors. Asphalt sidewalks are black, right? And that's a dark color, right?
Saturday, April 5, 2008 at 3:20am by DBob222

Chemistry
Probably KCl. The purple flame is indicative of potassium; however, my experience is it is not an intense purple flame but a light colored violet and somewhat fleeting when it appears. The AgNO3 test is indicative of chloride ion. However, both tests should be confirmed. A ...
Wednesday, September 29, 2010 at 1:23pm by DrBob222

physics
what colors of ink do color ink -jet printers use to produce a full range of colors? do the colors form by color addition or by color subtraction?
Sunday, March 2, 2008 at 2:41am by sam

inorganic chermistry
(a)explain why the colour for ions in the flame tests differ (b)Why do the chemicals have to be heated in the flame first before the colour light is emitted?
Friday, October 1, 2010 at 3:03pm by kabelo

engineering
I need help with my Fire Engineering homework. What is the heat release rate of a flame measuring five feet in height assuming the flame is in the center of a room?
Friday, November 4, 2011 at 5:31pm by Deborah

thermodyn. please check work
What is the sign of heat(Q), Work(W), or Temperature for these following situations. Say if it's +,-, or 0. 1)You hit a nail with a hammer: +W, Q=0, T=0 2)You hold a nail over a Bunsen burner: Q=+Q, Temp:constant, W=0 3)You compress the air in a bicycle pump by pushing down on...
Saturday, August 15, 2009 at 10:26pm by Anonymous

astronomy
on a domestic gas cooker the temperture in the hottest part of the flame is about 2200k.if salty eater is spilled in the flame then it becomes yellow-orange.measurements with a spectrometer show the presence of an emission line at 589n. 1) the solar spectrum shows an ...
Monday, March 3, 2008 at 4:11pm by amy21

math
we decided on a new logo for our brand of t-shirts.It was to be 3 stripes;(1) each stripe could be colored in 1 of 2 different colors,but we didn't want adjacent stripes to be the same color.how many different logos could we make.(2) how many more logos could we make if we ...
Wednesday, December 5, 2012 at 9:11am by anne

math
there are balls of colors red, blue and green. 65 students of a class like exactly one color, 10 students like no color, 40 students like exactly 2 colors and 15 students like all the 3 colors 1. how many students are there in the class. 2.how many students like atleast 2 colors.
Wednesday, June 19, 2013 at 3:34am by anu

math-
A new model of car is available in 4 exterior colors and 3 interior colors. Use a tree diagram and specific colors to show how many color schemes are possible for the car. Solve the problem using an alternative method as well.Note that you are asked to solve the problem in two...
Monday, August 10, 2009 at 7:45pm by Mike

art
There's a mnemonic to help remember the names of the colors in order: ROY G BIV (a boy's name with a strange last name!) RED orange YELLOW green BLUE indigo violet If you remember the mnemonic and the ones I put in all-caps, you'll have the primary colors. The others are ...
Friday, April 6, 2012 at 6:35am by Writeacher

physics
Suppose the fame of a gas burner stove emits light just like a blackbody. The flame appears blue,emiting most of its light at a wave lengh of 475nanometers. what is the temperature of the flame? How do I solve this?
Wednesday, October 19, 2011 at 2:29pm by KatieSc

chemistry
can you check if i write the reaction right CH3NH2 + HClO4 yields CH3NH3ClO4 then CH3NH3ClO4 yields CH3NH3 + ClO4 then CH3NH3 + H20 yield CH3NH4+ + OH-
Saturday, June 5, 2010 at 1:27am by flame

English 3 honors
How a chameleon changes colors, and why they change colors.
Wednesday, September 1, 2010 at 4:33pm by Kalie

chem
If you are talking about flame emissions (and not visible colors as we look at them), the answer is that the electrons in the elements are raised to various energy levels and they fall back to their original positions, either all at once or in steps. Different elements have ...
Wednesday, October 6, 2010 at 4:51pm by DrBob222

Burning Candle experiment
It looks somewhat a flame to me, too. The wax either burns in the flame, producing CO2 and H2O or it drips down the side of the candle instead of burning.
Thursday, April 1, 2010 at 11:18pm by DrBob222

Chemistry
A 67gr mass of solid iron is heated by a flame until the temp of the iron equals the temp of the flame. The solid iron is then dropped into 250gr of liquid water at 26 degrees C. After 5 mins, the iron and the water are both at 47 degrees C. Specific heat: Iron- .451 Water- 4.184
Monday, March 30, 2009 at 11:04pm by Lacey

Chemistry
Using the results of the flame test would indicate that the precipitate is Ca2+. Although the color of the precipitate after the addition of K2CrO4 is the pale yellow of BaCrO4, that is only a superficial indication. CaCro4 is also yellow and may precipitate, particularly if ...
Friday, March 22, 2013 at 12:28am by Anonymous

art
what two colors are --- when they're directly across from each other ont he color wheel and share no common colors
Thursday, September 16, 2010 at 10:11pm by Anonymous

math
A new car comes in 5 exterior colors and 3 interior colors. How many different-looking cars are possible?
Sunday, August 19, 2012 at 1:06am by karla

principles of colors
Answeres to priciples of colors
Thursday, March 1, 2012 at 8:26pm by Anonymous

physics
You can comfortably hold your fingers close beside a candle flame, but not very close above the flame. Why? In a still room, smoke from a candle will sometimes rise only so far, not reaching the ceiling. Explain why.
Wednesday, January 30, 2008 at 7:35pm by HELP!

science
I put a peice of copper into a flame and I need to write a word equation for it. Whats a flame made up of cause I wanna write copper + _____ -> _______ + ________ I know its a synthesis reaction.
Monday, October 6, 2008 at 9:35pm by Lena

English
1. Fold the paper along the dotted line to make a triangle.(Right?) 2. It will heat the floor. It will warm the floor. (Are both OK?) 3. Don't throw stones at the dogs. Don't throw stones to the dogs. (Are both prepositions OK? What is the difference?) 4. The scarf has many ...
Saturday, April 25, 2009 at 5:00am by John

Burning Candle experiment
what is the shape of the candle flame? To me it looks kind of like a leaf--more like a teardrop. Am I correct? where does the wax from the candle go? Does it just burn in the flame?
Thursday, April 1, 2010 at 11:18pm by Sara

Math 8
Isabelle has a choice of 3 colors of pants, 5 colors of shirts, and 3 kinds of shoes. How many different outfits can she wear? a. 12 c. 22 b. 11 d. 4
Wednesday, December 26, 2012 at 5:17pm by Anonymous

Math 8
Isabelle has a choice of 3 colors of pants, 5 colors of shirts, and 3 kinds of shoes. How many different outfits can she wear? a. 12 c. 22 b. 11 d. 4
Wednesday, December 26, 2012 at 5:39pm by Anonymous

Chemistry
The color of the K^+ flame.
Thursday, April 8, 2010 at 7:02pm by DrBob222

chemistry ------ flame test-------------
thanks for your help
Thursday, October 11, 2012 at 12:12am by Maria

physics
Find the heat flux due to radiation from a gasoline pool fire whose flame is 3 m tall with a 1 m diameter, and it is 3.5 m away from a target fuel. Assume e = 0.98 with a flame temperature of 1,300 K. Solve this problem by determining the configuration factor and assume a ...
Sunday, November 4, 2012 at 1:00pm by doris

Math: Check
I added it, it was equal to $843.15, and when i divided it, the exact anser is... $168.63.
Tuesday, June 26, 2012 at 10:15pm by Losa: Flame Girl

Chemistry
Suppose we take the Na ion as an example. It has one electron in the outside shell. When anything containing the Na ion is placed in a flame, (NaCl, Na2SO4, NaBr, etc), the atom absorbs energy from the flame and the outside electron is moved to an outer energy level. That is ...
Saturday, January 12, 2008 at 9:10pm by DrBob222

chemistry
what is the flame test for nickel
Monday, December 3, 2007 at 9:02am by Anonymous

Math
Keiko has 7 colors of lanyard. She uses 3 different colors to make a keychain. How many different combinations can she choose? 7 for the first, 6 for the second and 5 for the third. The answer is the product of those numbers, no matter what order the three colors are picked. ...
Sunday, May 6, 2007 at 2:18pm by Allison

English
Color of Our Friendship Friendship is full of colors. Red is action. It makes us feel active. Yellow is happiness. It makes us feel happy. Gray is age. It keeps us living harmonously together. Friendship is full of colors. (It is a poem I made. Would you check the poem and ...
Monday, August 24, 2009 at 12:12am by John

math
tonya and lauren are designing a soccer uniform. They want 2 colors on the shirt. the choices are green, orange, yellow, purple, blue and silver. How many ways can they choose 2 colors?
Thursday, September 1, 2011 at 2:35am by destiny

chemistry
sorry i post in the wrong forum
Tuesday, May 18, 2010 at 1:04am by flame

CHEMISTRY
1.List all the ions that cause a red flame and produce a precipitate in the presence of hydroxide ions. 2.List all the cations that could cause the red flame and produce a precipitate in the presence of sulfate ions. 3.
Monday, May 20, 2013 at 9:38pm by NEED help PLEEASE!!

Chemistry
What are the characteristics of a perfect flame for a bunsen burner??
Tuesday, October 13, 2009 at 9:08pm by Paige

Chemistry
Benzene burns with intense smoky flame,this is b/c ?
Wednesday, January 25, 2012 at 10:59am by Chemo

Chemistry
the origin is the flame itself. I have no idea what x is.
Sunday, February 23, 2014 at 7:00pm by bobpursley

organic chem
It depends upon what you are using for the source of heat. If you are using an electrical system, such as a heating mantle, then its done with a rheostat. Using an open flame you would decrease the flame, etc. These are guesses since you don't specify a heating source.
Saturday, December 1, 2007 at 5:10pm by DrBob222

Fine Art 7
Most people in most cultures wear all colors. You can use whatever colors you want for their clothing.
Thursday, November 17, 2011 at 7:40pm by Ms. Sue

ALGEBRA
I think you may have forgotten one of the colors...yellow. There are 7 colors in the rainbow, so it would be 7! or 7x6x5x4x3x2x1 which would give you 5040.
Wednesday, April 16, 2008 at 3:10pm by msp

science
why is the sky blue? is it because of elements in the atmosphere that when the sunlight which is made of multiple colors hits it the other colors are absorbed and blue is reflected?
Thursday, December 17, 2009 at 6:48pm by ....

college
atoms heated in a sample emit only certain colors of light in sharp lines and not all colors blended together tells us what about the energy of an atom?
Tuesday, October 20, 2009 at 1:01am by Brian

Physical Science
The primary colors of pigments A. are cyan, yellow, and magenta. B. are the same as the secondary colors of light. C. combine in equal amounts to produce black. D. all of the above I think it's D.
Wednesday, September 4, 2013 at 2:41pm by Danny

college
it must claim something specfic so i chose the leaves, i wanna talk about how they change colors or what the change of colors mean
Monday, October 11, 2010 at 5:46pm by brittany

math
we decided on a new logo for shirts,if we had used 4 stripes and 2 colors,how many more logos could we have made than using 3 stripes and 2 colors
Monday, December 10, 2012 at 5:15pm by tara

chemistry
Ni has no good flame test in the visible reagion.
Monday, December 3, 2007 at 9:02am by DrBob222

chemistry
is a flame coloration a test for the metal or for the acid radical?
Wednesday, January 13, 2010 at 6:54pm by Anonymous

Chemistry
Propane forms a flame and emits heat as it burns.
Saturday, April 2, 2011 at 9:23pm by ronie

chemistry
6 part question 1. describe the appearance of a Bunsen flame that is getting insufficient air? 2. describe the appearance of a Bunsen flame that is getting too much air. 3. When inserting glass tubing into a rubber stopper, how far from the stopper should you hold the tubing? ...
Wednesday, February 5, 2014 at 8:13am by Lisa

English
4) definitely ON the main streete supermarket at 23 of the main street? (a bit strange that I know the number of the building, but do not know the name of the street. 5) not law flame but LOW flame 6) a vegetable soup OR just: prepares vegetable soup Everything else IS fine. Sra
Tuesday, February 1, 2011 at 5:06pm by SraJMcGin

Art... Complementary colors
Hello, In the following question my answer is #1 is that correct? Thank You If you wan to balance complementary colors so that they'll appear static and harmonious, you need to; #1 use the proper proportions of each color. #2 work only with spilt complementary colors. #3 ...
Saturday, August 18, 2007 at 11:05pm by Mandi

chemistry
why would my flame have looked bigger what do you think i was doing wrong?
Monday, May 10, 2010 at 9:24pm by grace

chemistry
Not really. In flame emissions, it's the metal that is excited, not Cl or F ions.
Wednesday, October 6, 2010 at 4:53pm by DrBob222

chemistry
I can't for the life of me figure out what a flame test has to do with a reported value.
Wednesday, October 6, 2010 at 6:05pm by DrBob222

chemistry
Ok maybe I didn't understand the question, I guess it doesn't, I just assumed it was a flame test
Wednesday, October 6, 2010 at 6:05pm by Alix

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