Electrons can be core or valence. The core electrons are like nobel gases and the valance are the rest. Like noble gases, core electrons do not react, but valence electrons do.
Imagine, if you will, a reaction of sodium with chlorine gas. The sodium gives up a valence electron and chlorine gains one. The compound made is 1:1 Na:Cl. A similar thing happens with potassium and bromine, you get KBr.
The electron configuration of sodium is 1s2 2s2 2p6 3s1. The part up to 2p is just like the nobel…
or a change in the state of matter.
Chemical changes are changes that involve the re-arrangement of atoms in the molecule. They can be identified by a color change, if a new gas is given off, if a precipitate or new solid forms, and if light, electricity, or heat is given off.
b. observations- The observation that was made was that there was going to be many different experiments set up. Each of the experiments that were going to be set up would have a chemical change or physical change take…
Green Chemistry and the Diels-Alder Reaction
The purpose of this reaction is to bring about the movement of green chemistry which is a safer, more sustainable chemistry to all levels of chemistry. The use of 12 principles can make in principle a reaction greener with the use of modifications. In this lab, the Diels-Alder reaction will be performed by reacting (E,E)-2,4-hexadien-1-ol with maleic anhydride without the use of a solvent to make the reaction more greener. The reaction will…
The CORPS Interest Inventory helped me define my career pathway based on my personal interests. It was a survey based questionnaire that asked many personality as well as interest questions. The results came out as, physical science with a 93% match and a science based career with medical involvement at 75%. All other careers matches at less than 40%. It was clear what I was interested in, which is science. For as long as I recall i have wanted to become a scientist and the CORPS interest…
Four different were gathered from the IR spectroscopy to identify the nitrophenol. The first peak observed was a weak and broad at 3314.75 cm-1, which was corresponded to an alcohol group; therefore this peak must be corresponded to the O-H stretch of the phenol with a literature value that ranges from 3550-3500 cm-1 (Figure 5). The variance between the observed value, and the expected value can be due to the MHz of the IR spectrometer used. The second peak observed was a weak-medium, sharp and…
The effect of altering temperature on the rate of liver enzyme activity is measured in this experiment to be able to visualize how temperature in the environment and in the body can manipulate the rate of enzyme activity. Enzymes are protein catalysts that lower the amount of activation energy required to start a biochemical reaction. According to Dr. Meyertholen (2015), enzymes are structured to work with certain substrates, meaning that the structure determines the function of the enzyme. If…
this experiment, disaccharides were tested using an enzyme as part of a chemical reaction. A chemical reaction changes substances into different substances by breaking and forming chemical bonds. In a chemical reaction, there are two main parts: the reactants and the products. The reactants are the substances changed in a chemical reaction. The products are the substances created by the chemical reaction. In many cases of chemical reactions, substances called catalysts are utilized. Catalysts…
The steps of synthesis process can be explained in Fig. 1.
The Zn (NO3)2.4H2O (zinc nitrate tetrahydrate) and
Al (NO3)2.9H2O (aluminum nitrate nonahydrate) (Merck)
are used as a precursor. ZnO precursor solution with the
concentration of 0.15 M was made by dissolving 0.89 grams of
powder precursor Zn(NO3)3.4H2O in 40 ml of solvent. Solvent
comprises a mixture of 30 ml deionized water and 10 ml of
ethanol. To speed up the process of dissolution, the mixture
was stirred using a magnetic stirrer…
1. The primary reaction catalyzed by catalase is the decomposition of hydrogen peroxide to form water and oxygen, which occurs spontaneously, but not at a very rapid rate. Write a balanced equation for this reaction. Label the reactant and the product. (Remember that catalase is not a reactant or a product and can be written over the arrow separating the reactant from the products.) I will help you with the equation.
Measuring the Average Catalase Reaction Times of Solanum tuberosum Supernant in Hydrogen Peroxide
Biology 103: Botany
Professor Silady, Smith
February 23, 2017
This investigation is geared towards observing the enzyme reaction times in Solanum tuberosum, also known as the common potato, depending on the temperature of the catalase. During the lab, students tested the reaction times of the catalase when placed in hydrogen peroxide when the…