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July 30, 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 ...
February 14, 2011 by Farah

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 ...
November 6, 2006 by J.M.

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 ...
September 17, 2013 by Sarah

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.
October 11, 2012 by Maria

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 ...
July 10, 2008 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 ...
July 10, 2008 by Chu

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...
September 20, 2009 by Emily

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!
August 16, 2010 by Anonymous

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
April 8, 2010 by Sarah

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 ...
October 21, 2007 by amaliyah

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 ...
May 10, 2010 by grace

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

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?
October 21, 2011 by EBS123

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...
August 24, 2009 by John

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
January 19, 2011 by John

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...
October 21, 2011 by KatieSc

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...
August 15, 2009 by Anonymous

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...
August 15, 2007 by amanda

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?
October 1, 2010 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?
November 4, 2011 by Deborah

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 ...
July 6, 2007 by bobpursley

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 ...
March 3, 2008 by amy21

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?
September 12, 2012 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.
May 8, 2012 by Emily

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?
October 19, 2011 by KatieSc

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 ...
September 8, 2010 by Anonymous

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 ...
May 16, 2011 by Michelle

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.
October 6, 2008 by Lena

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
March 30, 2009 by Lacey

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.
January 30, 2008 by HELP!

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?
April 1, 2010 by Sara

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?
March 2, 2008 by sam

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 ...
November 4, 2012 by doris

chemistry
what is the flame test for nickel
December 3, 2007 by Anonymous

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 ...
December 5, 2012 by anne

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 ...
August 24, 2009 by John

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...
August 10, 2009 by Mike

Chemistry
What are the characteristics of a perfect flame for a bunsen burner??
October 13, 2009 by Paige

Chemistry
Benzene burns with intense smoky flame,this is b/c ?
January 25, 2012 by Chemo

chemistry
is a flame coloration a test for the metal or for the acid radical?
January 13, 2010 by Anonymous

Chemistry
why is flame test for chemicals important? give me reasons
October 26, 2010 by King Wah

chemistry .chemistry
obtanin a piece of comcentrated acetic acid and 10 ml of di- water . bring the content of this beaker to a gentle boil using a low flame on the Bunsen burner . boild for about 3minutes , alow to cool and then remove the steel wool ball . what is formula? Ans : Fe + 2CH3COOH...
October 17, 2012 by John

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

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

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
December 26, 2012 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
December 26, 2012 by Anonymous

chemistry
give 2 commercial or practical uses of this flame color phenomena.
October 19, 2010 by Kassandra

chemistry
what happens to the loosely held electrons when each ion is heated in the flame
November 15, 2010 by natty

chemistry
what happens to the loosely held electrons when each ion is heated in the flame
November 15, 2010 by natty

Chemistry
Why does only one of these ions (Co, Cu, or Ni) produce a positive flame test?
November 17, 2011 by Taemin

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? ...
February 5, 2014 by Lisa

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 ...
April 25, 2009 by John

Science
Does anyone have the spectra for sulfur? In class we did this using a flame test, where we put the sulfur in a flame over a bunsen burner and used a spectra scope to find sulfur's spectra, but I seem to have lost this data. I've been looking on the web, but I don't know which ...
May 27, 2008 by Maddie

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.
May 20, 2013 by NEED help PLEEASE!!

Chemistry
I'm doing a flame testing lab in which I'm supposed to be able to identify an unknown element by observing the color it emits once heated. The color of the flame after heating this unknown metal is a light pinkish-violet. The question I need to answer asks what metal ion this ...
December 15, 2008 by Brianna

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.
June 19, 2013 by anu

English
what the purpose of the olympic torch/flame? The purpose of the olympic torch/flame is to give everyone the strength to protect themselves from danger and help struggle for victory. Can someone please give me a better purpose than this. I tried to fit these words in my answer...
February 16, 2010 by Sara

chemistry
what will happen when potassium liliac colored flame is viewed through blue glass
June 14, 2008 by Anonymous

chemistry
When hydrochloric acid is mixed with magnesium and a flame is put in the tube what causes a reaction?
December 18, 2008 by chris

chemistry
would ionic or covalent substances be more dangerous near an open flame? why?
March 4, 2009 by pick

Chemistry
What is the function of Compressed Air in GC-FID (i.e. Gas Chromatography-Flame Ionization Detector)?
March 18, 2012 by anne

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. ...
May 6, 2007 by Allison

chemistry
which do you think would be more dangerous near an open flame, an ionic or covalent compound?
December 7, 2009 by maria

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?
September 1, 2011 by destiny

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?
October 20, 2009 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.
September 4, 2013 by Danny

Chemistry
it is considered a saftey hazard to leave an operating burner unatteneded unless the flame is made luminous10 explain why
September 24, 2010 by christine

science
why does a candle appear to go out when a copper coil is placed over the flame? Combustion requires three things: fuel (wax here), oxygen (air here), ignition temperature (a match here probably). Remove one and the combustion stops -- that's the principles firemen use to put ...
June 21, 2006 by jenna

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?
December 17, 2009 by ....

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
December 10, 2012 by tara

Art
What is value? • the lightness or darkness of a color • the intensity of a color • the number of colors being used in a 2D artwork • the difference between two colors
May 11, 2014 by Sandra

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 ...
August 18, 2007 by Mandi

Chemistry
What color would Nickel ions burn (say in a compound of NiSO4)? Green? If you searched this on the web please post the link for a reference I can use. I don't have a reference. In fact, it is not listed in any text book I own and it is not listed on any of the sites I found on...
November 6, 2006 by J.M.

5TH GRADE MATH
FRANK, KENDRA, AND LIN ARE PAINTING A MURAL. THERE ARE 2 SETS OF PAINTS, EACH WITH 50 COLORS. PAINTS ARE PASSED OUT UNTIL EVERYONE HAS THE SAME NUMBER. HOW MANY COLORS DOES EACH WORKER GET?
October 22, 2013 by Stephon

Clinical Chemistry
Why is slightly higher serum sodium consistently found by evaluation by ion-selective electrode (ISE) as compared to flame photometry?
April 9, 2013 by Kelley

math
jade and isis are designing a soccer uniform they want use two colors on the shirt, their choices are green , orange, yellow, purple, blue silver. how many ways can they choose two colors?
September 26, 2012 by laura

Math
Tonya and Lauren are designing a soccer uniform.they want to use two colors on the shirt.their choices are green, orange,yellow, purple,blue and silver. How many ways can they choose two colors?
September 17, 2013 by Anonymous

math
Tonya and Lauren are designing a soccer uniform. they want to use two colors on a shirt. their choices are green,orange,yellow,purple,blue,and silver. how many ways can they choose two colors?
October 9, 2013 by steve

Chemistry
when heating a beaker, where should the burner flame be located for maximum heating?
June 16, 2008 by Anonymous

CHEMISTRY
do the positive ions or the negative ions cause the change in flame color?
October 27, 2013 by Anonymous

Math
Tonya and Lauren are designing a soccer uniform.they want to use two colors on the shirt.thier choices are green,orange,yellow,purple,blue,and silver.how many ways can they choose two colors.
August 21, 2012 by Evelyn

chemistry
why a flame of fire faces to the upward direction and not to the downward direction even having the effect of gravity?
January 18, 2013 by berton

math organized list
tonya and lauren are desinging a soccer uniform they want to use two colors on the shirt their choices are green orange yellow purple blue and silver how many ways can they choose two colors?
November 8, 2012 by kevin

physics
how are the colors in a spectrum from an atom different from those in a rainbow? I think it is that the spectrum colors are more distinct and not "fuzzy" like a rainbow but I'm not sure
November 2, 2009 by josh

chemistry
In a bunsen burner experiment, when you place a piece of soot covered chalk over the hottest part of the flame, it changes back to a white color. What is the equation for this process? Thank you
October 10, 2012 by Samantha

ALGEBRA
The colors red, orange, green, blue, indigo, and violet are written on slips of paper and placed in a hat. What is the probability that the slips will be chosen in the order of the colors of a rainbow (the order listed above)
April 16, 2008 by Student

English
1. Colors make up our world. 2. Our world is made up by colors. 3. Our world is made up of colors. (What is the passive form of the active form #1? Is it #2 or #3? Are both grammatical?) 4. Is two-word verb composed of a verb and an adverb? What about a verb and a preposition...
July 14, 2009 by John

thesis revision
While the colors associated with Holi are the main part of this celebration, the true reason for celebrating Holi is to keep the evil spirits away. Not only is Holi a joyous, colorful festival to celebrate with friends and family, but it is also meant to celebrate the death of...
October 18, 2007 by apoorva

Visual Arts
1.Using the conventional color wheel, name two PAIRS of complementary colors. This means at least 4 colors. When you put complementary colors next to each other, What is the visual effect? 2. Describe the difference between visual texture and actual texture in art. Give some ...
April 12, 2012 by Whitney

Math
A bag contains 10 marbles: 1 red, 2 blue, 3 green, and 4 yellow. I reach into the bag and pick 5 marbles at random. Determine the probability that my pick has: (a) At least 2 yellow marbles. (b) At least 2 yellow marbles and at least 1 green marble. (c) All four colors ...
November 13, 2012 by April

chemistry
when doing a flame test: the hydrated salt is overheated and the anhydrous salt thermally decompose, one product being a gas; will the reported value of x be too high, too low on the unaffected?
October 6, 2010 by Alix

Preschool teacher needs your help... thx a mill
I am a preschool teacher and my 3 and 4 year olds are struggling with their numbers and colors.... What fun game could I play with them to teach them their numbers and colors?
November 14, 2009 by Marcia

Art... Color
Hello, Help... Is # 4 correct? Thank You Working with a limited palette of colors still allows for a wide range of colors. Of the following groups and combinations which will give the most variations? 1 hue + shades + tints 2 analogous hues 3 hue + complement 4 Primary hues Yes.
August 9, 2007 by Mandi

Chemistry
Would flame test be useful for detecting metal ions present in a mixture of metal ions?
October 1, 2008 by Martimer

Chemistry
What is the chemical cause of the greens and red colors of aurora borealis (the northern lights)?
November 4, 2010 by anonymous

Agility Training
Please check my answer thanks :) A gamble is a course that's A. determined by a series of colors. B. set out by the judge. C. established by another handler. D. the same from competition to competition My answer is B
January 13, 2009 by Mallie

Physical Science
Can someone please help me with this question Im not really sure what the question is asking, I don't understand at all. Please explain. With sound, you get harmony when the frequencies of two sounds are in the ratios of small integers - eg, two sounds with one frequency ...
October 5, 2011 by Allison

Chemistry
What are complementary colors and how due different wavelengths of light affect the original color?
October 26, 2009 by Brian

English
1. Colors make up our world. 2. Our world is made up of colors. 3. Our world is made up by colors. (Is #2 the passive form of #2? What about #3? Is #3 the passive form of #1?)
July 4, 2010 by rfvv

Math for the middle school and elementary teacher
3 red balls, 4 green balls, and 5 yellow balls are in a bag. If 2 balls are drawn randomly (without replacement) find the probability that the balls are different colors. I got 47/66 that the balls are different colors...is that right?
February 28, 2012 by liz

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