sulphur mix, the heat was there to start a chemical reaction. The sulphur dissolved and bubbles were produced. There was a blue flame being sustained over the crucible for about twenty seconds after the reaction was over. This new substance, the combination of iron and sulphur had turned into a pure substance: iron sulphide. 5. Was there a chemical reaction in part B? How did you know? There were many indications that there was a chemical reaction in part B of the experiment. These include: the fact
Words: 1219 - Pages: 5
air. The masses were measured before and after the reaction. Balanced equation for magnesium oxide: 2Mg + O2 2MgO (“Types of Reaction”) According to “Burning Magnesium”, after magnesium is heated and reacted with the oxygen in the air, it is suppose to form a white powder of MgO, which is exactly what is shown in table 1. The reason why this white powder was formed is because when heated magnesium gives up 2 electrons to O2 atoms. This reaction is an exothermic, gives off heat. In table 1, the observations
Words: 670 - Pages: 3
of methyl benzoate by nitronium ions which are supplied by the mixture of HNO3 and H2SO4 are typical electrophilic aromatic substitution reaction. The ester group of methyl benzoate is electron withdrawing group will deactivate the aromatic
Words: 1013 - Pages: 5
function and produce a wide variety of biochemical reactions that help sustain life. The main purpose of this lab is to understand the narrow optimal range and varying perimeters that allow these enzymes to optimally function. The enzyme, acid phosphatase, and the substrate p-nitrophenylphosphate were subjected to several different conditions, such as reaction time, varying amount of substrate concentrations, differing amounts of pH and varying reaction temperatures. The overall prediction for this lab
Words: 939 - Pages: 4
The experiment involved a Diel-Alder reaction and is also known as a [4+2] cycloaddition because the reaction takes place between two different π Systems, one of which is associated with 4 atoms and the other one having two atoms. We synthesized 9,10-dihydroanthracene-9,10α,β 13-succinic acid anhydride from anthracene (diene) and meleic anhydride (dienophile). The use of maleic anhydride as the dienophile allows for a relatively high yield because the carbonyl substituents remove electron density
Words: 319 - Pages: 2
The SN2 reaction can be evaluated by first observing the chemical mechanisms of the compounds involved. The agents took into account for the mechanism was the naphtholate anion and allyl bromide. First, a pair of lone pairs on the oxygen anion on the naphtholate compound attacks a single-bonded carbon on the allyl bromide compound. Afterwards, the bromide leaving group exits the allyl bromide compound, and creates its own anion cloud. Overall, this synthesizes naphthyl ether. The mechanism cannot
Words: 272 - Pages: 2
identify the alkyl bromide, the identity of the product was found by spectroscopic analysis. To complete this reaction, first the Grignard reagent was prepared. The reagent was generated by taking Unknown AP and adding it, dropwise, to a mixture of 6.2 mL of THF and 1.0008 g of magnesium. The magnesium had to be crushed to initiate the reaction between magnesium and alkyl bromide. Once the reaction took place, the colorless solution became cloudy and white bubbles formed. Eventually, the solution turned
Words: 892 - Pages: 4
A chemical reaction is where two or more substances come together and pops, fizzes, and in some cases explode! Alka Seltzer is a type of chemical reaction where you put water and carbon dioxide gas. Equation . When Alka-Seltzer tablets are dissolved in water, bicarbonate forms (from the sodium bicarbonate), which in turn reacts with hydrogen (from citric acid) to form water and carbon dioxide gas. “ In The bicarbonate reaction project you will find out for yourself by plopping Alkaseltzer
Words: 701 - Pages: 3
Revised Analysis Conclusion A chemical reaction is the interaction of 2 or more reactants that produces one or more new substances. The reactants in this experiment were distilled water and Alka-Seltzer tablets. Water contains H2O, and the ingredients in Alka-Seltzer are aspirin, citric acid, and sodium bicarbonate (NaHCO3). When sodium bicarbonate is placed in water, it dissociates into sodium (Na) and Bicarbonate (HCO3). When the bicarbonate splits apart, it reacts with the hydrogen ions from
Words: 580 - Pages: 3
science fair project is based on a chemical reaction taking place to turn a hot substance into ice. A chemical reaction is a reaction that changes the substances original identity to a different chemical identity. There are many different types chemical reactions in chemistry, but the one we are going to be focusing on are exothermic reactions. Exothermic reactions are reactions that transfer energy to the surroundings. The exothermic reaction is a reaction that gives off more energy than it needs
Words: 1641 - Pages: 7
