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1) The samples that would float on water are water (if in an ice form), oil, methanol, 2- propanol and lead because these materials are less dense than water, which leads to them laying on top, or until they dissolve. The samples that would sink in water include aluminum and copper because they are denser than water. 2) The order of the four liquids that I would layer them in a graduated cylinder from bottom to top consist of: water, oil, 2- propanol, and methanol. 3) Working with specific…

According to Encyclopedia Britannica in Britannica School the word tungsten comes from the mineral scheelite which was once called tungsten, which means heavy stone. The name comes from the Swedish chemist and his countrymen who discovered the metal in scheelite. The atomic number of tungsten is 74 and tungsten’s atomic weight is 183.84. Tungsten is also one of the densest and hardest metals in the world. From Encyclopedia Britannica in Britannica School, tungsten was discovered by a Swedish…

INTRODUCTION The purpose of this experiment was to demonstrate the stereochemistry of the electrophilic addition using (E)-Stilbene, a trans-isomer of ethylene. Bromine was added and reacted with (E)-Stilbene to form an alkene. A product was made with both a meso-stilbene dibromide and a d/l-stilbene dibromide, which is trans-stilbene dibromide. DISCUSSION AND CONCLUSION For the reaction to form these two different compounds with the same starting reactants, the double bond of (E)-Stilbene…

For every atomic nucleus, its total angular momentum is represented by the symbol I and called its nuclear spin. This spin is then determined by its quantum number, which is represented by the symbol S. Each nuclear spin is associated with a magnetic moment. When this moment is placed in an external magnetic field, these spin states differ in magnetic potential energy. If placed in a static magnetic field with a small amount of spin polarisation however, certain radio frequency signals can allow…

Chemistry is something that people use in everyday life. All the food we eat has to do with chemistry. Food has organic compounds that change when they are cooked. It is used in our everyday life when because you need chemistry to do everything. Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or forming a compound. The coefficients in a balanced chemical equation represent moles of reactants and moles of products. The mole ratio of…

Before the dawn of time, before the creation of the universe, there was one being, known as God. Once, and once only, he took upon a physical form we call Arceus. He appeared before two beings, Dark and Light, or Yin and Yang. He bestowed upon them their own physical forms. Yang’s physical form was a dragon with white fur, mostly on it’s head, which had beautiful, light-blue eyes, and huge wings with three claws on each, and a large cylinder tail with two rings. We call Yang’s physical form…

The previous lab that was conducted dealt with oxidation, which is referred to as a compound gaining oxygen or losing electrons (Wyman, 2015). This week’s lab consisted of a reaction that was the opposite of an oxidation and it is known as a reduction reaction. To be more specific a reduction reaction is when the reactant that is present gains electrons, which is response lowers the overall formal charge of the compound. For instance, if there are two hydrogen ions and each one has a positive…

5861 What is the identity of the unknown hydrate? Hydrates are pure substances that contain water molecules embedded in their crystal structures. When a hydrate is heated the water molecules evaporate leaving behind a solid known as anhydrous. The identity of a hydrate can be found by finding out the percent water in the hydrate. The experiment was done in a manner to find the percent water in an unknown hydrate to identify the hydrate. The hydrates were BaCL2*2H2O, CuSO4*5H2O, CaCL2*2H2O, and…

IONIC LIQUIDS Introduction:- Ionic liquids are actually salts that are liquid in state, normally referred to compounds that have melting point below an arbitrary temperature i.e. 100° C. Unlike some other ordinary liquids like water and gasoline, that are composed of neutral species while ionic liquids are composed of ionic species and ionic intermediates commonly known as “ionic fluids” and “liquid electrolytes”. In ionic liquids there is a species that has a delocalized species and the other…

Beryllium General Characteristics According to Hornbostel (1991), Beryllium is a hard, exceptionally, lightweight, gray-white metal, corrosion resistant at ordinary temperatures; chemically it is related to aluminum. Other than titanium, it is the only light metal which has both good strength and a high melting point. Additionally, it is a good electrical conductor, has high modulus of elasticity, exceptionally transmit x-rays and sounds at very high velocities. Moreover, it has the ability to…