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- Never leave the gas on when the flame is out
- never put anything you don't intend to heat
- ensure the tube is arranged properly as if it is turning here and there, the gas might just be stucked somewhere and there will not be any fire burning
- never touch the collar(the neck) as it is very hot and when it strikes back at the gas
hole, off the gas immediately.
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What to note of when using Bunsen burner?
dont burn things
When would you use an open and closed flame?
The closed flame (orange) is only ever used when turning on the bunsen burner or when you are leaving it for any amount of time to insure the safety of your class mates. The open flame (blue) is used at all other times. Please note it can be hard to see the blue flame so it is important that you stay aware and safe as it is often as hot as 700oC.
What is an example sentence using the word incipient?
Lauren sat in front of the piano then played the incipient note of the musical piece.
What are the freezing points of the elements on the periodic table?
Every metal has a different freezing point. Mercury has a freezing point well below zero, where Iron has a freezing point well above zero. It varies from substance to substance, and is again different from alloy to alloy. Note: Freezing points are usually called melting points.
How are fossils uncovered?
By wind and water erosion, and activities of men, such as building.
What to note of when using Bunsen burner?
dont burn things
What should you take note when using Bunsen burner?
Watch out for the fire as it might burn the equipment
How do you boil water using a Bunsen burner?
you put your water in the bursen burner then put in on heat the heat should be moderate to avoid vigorous boiling.Alway take note that you do not make the mouth of the bursen burner to face you put it the opposite side and do not lok in side the bursen burner.
How many points is one ordinary note worth on Guitar Hero?
At a x1 multiplier: * 50 points for a single note. * 100 points for a 2 note chord. * 150 points for a 3 note chord.
What are 4 facts about the Bunsen Burner?
The Bunsen burner is such a familiar fixture of chemistry labs that its reputation reaches students even before they enter the classroom. As an icon of science, it permeates popular culture. But where did the Bunsen burner come from? Who invented it? You might hope to chuckle at the absurdly obvious: "why, Bunsen, of course!" But a brief foray into history may be warranted before placing too significant a wager on the "obvious."Robert Bunsen, whose name we associate with the burner, was a 19th-century German chemist of some renown. He worked on explosive organic arsenic compounds--leading to the loss of one eye--and, later, on gases from volcanoes, geysers and blast furnaces. With Kirchoff he contributed to our understanding of the meaning of spectra lines. (He also gained note for not bathing--one woman of polite society remarked that Bunsen was so charming that she would like to kiss him, but she would have to wash him first.) Bunsen invented many bits of laboratory apparatus: the spectroscope, the carbon-pole battery, an ice calorimeter and vapor calorimeter, the thermopile, and the filter pump--but not, as one might imagine, the gas burner that bears his name. Rather, the "Bunsen" burner was developed by Bunsen's laboratory assistant, Peter Desdega. Desdega himself likely borrowed from earlier designs by Aimé Argand and Michael Faraday. So why does Bunsen get the implicit credit? --And why do we know so little about Desdega that we cannot add much to his story?"Bunsen's" burner illustrates an important dimension of science frequently omitted in teaching about science: professional credit. Eponymous laws and labels--whose names reflect their discoverers--appear throughout science: Snell's law of refraction, Gay-Lussac's law of gases, the Hardy-Weinberg model of population genetics, the volt (named for Alexander Volta), etc. The naming of laws for their discoverers seems appropriate for honoring the scientists--and the human names are handy for reminding students that science is done by real persons. But in this system, one person and only one person gets all the credit. Focusing on great individuals can hide the collective nature of science, especially the role of technicians such as Desdega. How do we distribute the credit where appropriate?The great Isaac Newton is frequently quoted for expressing the humbling effect of the collective effort in science: "If I have seen further," he once professed, "it is by standing on the shoulders of giants." Newton's claim, we now know, betrayed a false modesty. Newton's bitter priority dispute with Leibniz over the invention of the calculus, in particular, bears witness to his ambition and obsession with prestige--and his political maneuvers in trying to achieve it. In that case, at least, Newton tried to further his own stature "by standing on the claims of competitors." In similar ways, perhaps, the contributions of technical workers often get buried when we allow theoretical discoveries of the work of their masters to overshadow them. Bunsen's burner--or perhaps the Desdega burner--is a notable example.The story of the Petri dish is an interesting exception--while at the same time underscoring the general pattern of invisible technicians. Julius Richard Petri (1852-1921) worked for the master of "germ theory" in Germany in the late 1800s, Robert Koch (1843-1910; pronounced as a gutteral "coke"). Initially, bacteria were cultured in liquid broth--a practice captured in our famous images of experiments on spontaneous generation. But Koch saw the advantage of growing bacteria on a solid medium instead. By spreading out mixtures of microorganisms on a solid surface, he could separate individual types in isolated colonies. With pure colonies, he could investigate the effects of each bacterium. The method allowed Koch to identify the specific organisms that cause tuberculosis, cholera, diptheria, among many other diseases--and then to develop vaccines.
When would you use an open and closed flame?
The closed flame (orange) is only ever used when turning on the bunsen burner or when you are leaving it for any amount of time to insure the safety of your class mates. The open flame (blue) is used at all other times. Please note it can be hard to see the blue flame so it is important that you stay aware and safe as it is often as hot as 700oC.
Which of the following are good note-taking skills A writing down every word as quotes B doodling C capturing key points in short phrases D using perfect penmanship even if it means missing key points?
Since you need the key points to study for your test, the correct answer would be "capturing key points in short phrases."
Major chords are formed by using notes of a major scale?
Yes, using the root note (tonic note) of the scale and its 3rd and 5th note of the scale.
How do you determine invariant points of a graph algebraically?
Invariants are points that remain the same under certain transformations. You could plug the points into your transformation and note that what does in is the same as what comes out. The details depend on the transformation.
Can a company take away points when you have a doctor's note?
My daughter is pregnant. She gets a doctor note when she missed work to go to the doctor. Her work has a point system. They have taken away points due to her doctor appointments. Can they do this
Aseptic technique correct sequence of events in transferring bacteria from a culture tube into a new media tube?
1) Light a Bunsen burner and hold a transfer loop (*or needle) over the flame until it becomes red hot (hottest place is just above the first blue flame). a. *loops are used for transfers to broth media, needles are for transfer to agar media 2) Hold both test tubes in one hand at an angle (be sure not to spill, use your non-dominate hand, and have the mouth sections of the tubes set up above your hand). In the other hand you should be holding the sterile transfer tool with your thumb and forefinger, take the tube caps off with your other three fingers. (be sure note which cap goes with which tube and not to mix them up) 3) Quickly pass the top sections of the tubes through the Bunsen flame. 4) Dip the needle or loop into the broth culture and stir around. a. When using a loop be sure to get a drop in the middle. 5) Take out the tool without touching the sides of the tube and transfer the bacteria into the other tube media. (loops for broth media should be stirred, needles for agar media should be stabbed straight down almost to the butt of the tube and takes back straight out) 6) Take the inoculation tool out (continue holding) and sterilize the tube tops again (having been kept at a slant the entire time) and replace the correct caps. 7) Sterilize the inoculation tool in the Bunsen flame again before putting it down anywhere.
When you condense an article into the author's main points you are writing a paraphrasesummarydirect quote note?
summary
