Flame

cations and anions, which then allowed the unknown substance to be identified by using logic trees of known solutions. Some qualitative characteristics of chemicals such as the formation of a precipitate, the color of the solution, and the color of the flame when the chemical was heated were used to create a logic tree, which allowed for the unknown compound to be identified with simple yes/no questions. Materials and Methods Part One: In the metal hydroxide test, the first step was to add 10…

Chapter 2 (Cadmium) NG Ka Yan 2.1 Introduction Cadmium(Cd) is toxic which can affect human health at low levels, and it is a carcinogen. Cd cause cancer which is lung, kidney and prostate cancer. Cd leads cancer because of the oxidative stress. Oxidative stress involved the Cd-induced aberrant gene expression, apoptosis and inhibit the DNA damage repair. Besides, Cd trigger the reactive oxygen species (ROS) formations by producing cellular thiol redox imbalance, and that make intracellular…

conditions love must endure to last through the use of parallel thought structures and other various devices. Within the first line of the poem, the poet creates a relationship between flame, wood, and love. For example, the poet states “for steadfast flame wood must be seasoned.” In other words, a steadfast flame cannot occur if the wood is not seasoned. By introducing this cause and effect relation to…

Therefore, when referencing Figure 1, the cation that produces a yellow flame is Na+. When heated, Na emits photons with a specific wavelength that is yellow on the visible spectrum.6 When the compound reacted with 1.00 M HCl and BaCl2 separately, no reaction occurred and no precipitate formed. However, when the compound reacted…

The goal of this laboratory project was to identify the unknown compound and thoroughly investigate it to find its physical and chemical properties which reveal the way it might behave. This was done by performing many anion, cation, solubility, and pH tests to help us to determine the identity of our compound. The list of salts in the lab manual made it possible to narrow down the possibilities of our unknown compound. After identifying the compound, the goal was to synthesize the unknown…

Pass the neck through the Bunsen burner flame 2-3 times. Remove a few drops of culture with the sterile dropping pipette. Flame the bottle neck again and replace the cap. Lift the lid of the Petri dishes. Place 2-5 drops of culture in the centre of the dishs. Replace the lid as quickly as possible. Discard the dropping pipette into the beaker of disinfectant. Take the bottle of melted agar. Remove the cap and pass the neck through the Bunsen burner flame 2-3 times. Pour the contents into the…

The great and evil Winter is going to take of the magical education government at OSU. He’s a rather hard target to defeat, since he’s a shapeshifter, and so far he’s succeeding at his goal. Anyways, two dragons, Moon and Sephira, are sitting in the middle of their very last class only half watching the presentation going on. And the presentation is Moon’s illusion, so technically, Moon is watching only half-watching herself try to earn a degree after 8 years of school for a chemistry PhD. The…

The sun wasn't even quite up, yet the flames made the area almost bright as day, raging flames that lapped away at the bases of the large concrete structures built long before the war and dotted the wasteland for some distance, flames that stood as a testament to the cruelty and savageness of the attack as well as the power of the attacking gang. These flames had dwindled over time but many of the constructions of the trader camp still burned brightly and energetically. At first glance it was…

also used the chemical of sodium which is salt and when something with sodium were to be dropped into a hot blue flame will change it to a orange red flame color because this is what occurs during a flame test. When chemicals are heated change the color of the flame could be used to identify and find an unknown element by it flame color when heated and compare it to other chemicals flame test to identify the unknown. This connects to the lab because the same process was similarly used to…

they will “burn and singe” in the “fiery pits” while having no hope for “deliverance” or “mitigation.” His many adjectives consist of negative connotations while describing the sufferings the unsaved will endure. They will be “miserable” in the “hot” flames of the “fiery pit.” He uses many object complements to indicate how abominable mankind is, and always concludes with how grateful they should be to God. He claims they are like “worms” easily crushed; he also starts many sentences with the…