Flame Tests Of The Elements Lab Report

When the students placed the wire containing the sample in the flame it burned a orange/ red color. when this result was compared with the previous flame tests it could have resulted from either CaCl2 or NaCl. Both of these compounds produced an orange flame. After the flame test was conducted, the students performed a litmus test to identify whether the unknown was neutral or a base. When exposed to the red and blue litmus paper, no reaction occurred.

Prompt: “Write about a song you like and why?” My whole life revolves around music; everyday I’m going to either choir or orchestra. While I’m driving I’m singing along with the radio. Narrowing down all of the songs in my repertoire is a difficult task. After thinking about this question for a good half an hour I came to a conclusion.

Atoms DBQ Atoms make up every object , substance, and material we know of(O.I). An atom is the smallest particle an element can be divided into. An atom has a complex structure, and the knowledge we have of it has changed many times throughout history. This tiny maze of parts has helped us learn important ideas about the structure and study of microscopic particles(O.I).

For example, it was found that the alkaline earth metals react with O₂ to form XO. From this information, all elements with this reaction could be classified under the second group of elements. Next density was the last deciding factor to determine which elements go into which group. This only needed to be done for hydrogen and fluorine as they were the two elements that did not follow the periodic trend of reacting with similar compounds to form similar reactants. For hydrogen, it is known it is the lightest element from looking at the periodic table, determining it to be the least dense.

Beanium Isotope Lab Introduction: Isotopes are explained as the variations of the number of neutrons that an element may have. Some isotopes are more common than others. This experiment was performed to help visualize the different isotopes of an element and show how some isotopes will appear more often than others. Purpose: To visualize and understand isotopes Materials: Refer to Lab Sheet “Isotope Experiment- Beanium”

The book “Forged by Fire” by Sharon M. Draper is a book with many themes and lessons we all can learn. One of the themes that this essay will talk about will be about loyalty. For one thing, loyalty is a strong feeling because it’s something that comes from inside of a person to have faith in someone . We are all loyal to someone, someone who’s special in our lives and plays a major role in our lives that drags us to support them no matter what. In this book, Gerald gets abused by his drunk father.

In Magnesium there are 12 electrons, 12 neutrons, and 12 protons. It’s not usually common for the electrons , neutrons, and protons are the same. Magnesium is a solid. It’s melting point is 650C and the boiling point is 1107C. Its in group number 2 period number 3 the group name is Alkaline Earth Metal. Magnesium is

These electrically charged particles then react with gaseous particles, such as nitrogen or oxygen, inside the Earths atmosphere, forming beautiful coloured waves over the sky. The collisions cause the electrons to become excited and comprise of very high energy levels, once they return back to normal, the atoms emit distinct wavelengths of visible light. The array of different colours are produced depending on the wavelength of light emitted. This is determined by the specific atmospheric gas, its electrical state and the energy of the particle that hits the atmospheric gas. The most common auroral colour is yellowy-green with pink wisps on the edge, this produced by oxygen molecules approximately 100 to 200 kilometres from the earths surface.

Sofia Sanchez Mrs. Sam Science Feb 22nd, 2023 Outline I. Introduction: What is sulfur and what is it used for? Thesis: Sulfur is a periodic element with the symbol of S. II. Sulfur is located in period three in group 6 on the periodic table. Group 16 is a group of elements that are known as the chalcogens or oxygen group. Sulfur has sixteen electrons and sixteen protons with a six valence in its outer shell, and it can be classified as a nonmetal, not to mention that sulfur is the tenth most abundant element in the universe.

When you think about gold, the first thing that pops into your mind is the color. For white gold, other metals have to be added to the original color of gold to give it the white hue. Those metals are copper, nickel, zinc, and palladium. Along with changing

These color changes indicate a chemical change, which show that a reaction had occurred. In the first step when o-vanillin and p-toludine, imine was formed. The color change from green to orange suggests that imine appears as orange colored. In the second step, the addition of sodium borohydride reduced the imine into another derivative, which was yellowish lime color. The solution turned clear when acids and anhydrides was added, which indicated the precipitate were dissolved.

Chemical compounds that are available to determine are CaCO3, CaCl2, Ca(NO3)2, mgCl2, MgSO4, KCl, HCl, HC2H3O2, KNO3, K2SO4, NaC2H3O2, Na2CO3, NaCl, Na2SO4, HNO3, H2SO4, HNO3, H2SO4, NH4Cl, (NH4)2SO4, K2CO3, 0.1 M AgNO3, 0.2 M BaCl, Mg(s), NaOH, and KOH. To start this experiment, start with the flame test by gathering a Bunsen burner and a Nichrome wire. Connect the Bunsen burner with a rubber tube to a laboratory gas. To prepare solutions for the flame test, weigh out 0.205 gram of Unknown Compound using an analytical balance and mixed it into a 140 mL beaker filled with 20 mL ionized water. Ensure that solid is completely dissolved using a stirring rod.

Did you know that Gatorade and other sports drinks contain electrolytes that can be used in a battery solution? These electrolytes are the same ones that replenish your body after exercise. Gatorade and other drinks have different electrolyte activity rates. That makes the battery either more or less powerful. A battery can be made with more electrolyte containing materials than you think.

Ionization is the amount of energy it takes to take a valence electron from an element. Every element wants a full shell of valence electrons and will bond with other atoms to get it. Sodium has a lower ionization level than sulfur, because sodium has one valence electron and it would be easier to give that one away than to gain seven electrons, but sulfur has six valence electrons and it would be easier for it to gain two electrons than to lose. The more valence electrons an atom has the less it wants to give away its electrons, and the atom will have a tighter hold on the electrons which means more energy to take a valence electron. Sodium has a higher Ionization than

Martin had been one of the first to stray away from the usual chemical analysis of the time, which included removing unknown elements and adjusting the percentages of the known elements so that they equaled 100%. The scientist J. J. Berzelius was the first to isolate the impure form of this metal in 1824. Efforts to get the pure form stumped scientists until D. Lely Jr. and L. Hamburger got the pure form by heating it with Sodium. (Gale, 2007 paragraph 4 & 5)