Exchange rate

Reaction rates show the effect that the different chemicals have on each other whether they are highly reactive together, if so the reaction rate would be higher and faster. On the other hand if the chemical reaction has a slow rate of reaction the chemicals don’t have a very large effect on each other, therefore causing the rate of reaction to be slower. Reaction rate also known as the speed or reaction is defined for a product or reactant…

Introduction The purpose of this experiment was to test whether or not the heart rate of a daphnia was effected by three different solutions being added: alcohol, lactic acid and, caffeine. We determined that when alcohol was added the heart rate would decrease. When lactic acid was added the heart rate would decrease, as well. When caffeine was added the heart rate would increase. We determined that alcohol would slow the heart rate because it is a depressant. Since humans that drink alcohol…

Based on our observations from the Zinc and Hydrochloric Acid Lab, we concluded that the chemical reaction that occurred was exothermic and a single displacement reaction. The experiment consisted of zinc (Zn) and hydrochloric acid (HCl) being mixed in a test tube immersed in water. First of all, bubbles were produced during the reaction. Also, a white powdery substance was produced with properties different from those of any reactant. The bubbles suggest that the reaction was a chemical…

Ticket scalping has been around for many years and is defined as ‘an unsanctioned ticket investor who purchases tickets to an event and resells them at raised prices.’ The action to ‘scalp’ has been referenced as early as 1869 in American English to theater tickets but mostly to that of the 19th century referencing railway tickets. A scalper was a common utterance for “con man or cheater” in the late 19th century. (Scalper) The second-hand market grew exponentially as opportunists realized they…

consideration the market change as the Fed’s monetary policy can cause higher interest rates. When the interest rates is higher, the economic growth will be reduced and that could make Carson’s products demand to be adversely affected. b. If I were involved in the meeting, I think the focus should be put on the Fed’s impact on interest rates because if the Fed’s monetary policy is not affecting interest rates that could mean the economy should stay strong, and I will suggest Carson to pursue…

care for hospitals and healthcare organizations, it is accredited by the American Nurses Credentialing Center or the ANCC (ANCC, 2008). Many research data indicate that there are lowered percentages of patient mortality deaths, higher nurse retention rates, and more patient’s satisfaction in Magnet hospitals versus non-Magnet hospitals. As of 2015, only 426 or approximately 8% of healthcare organizations out of nearly 5,000 healthcare organizations in the United States received Magnet…

Disease and Medicine in 1840’s America America -- a young nation, still in its infancy; after declaring victory over Britain two times, and escaping the global Napoleonic War, there was an abrupt but shaky peace. The United States were hit by a massive economic revolution in a time period known to many as “Jacksonian America.” But when asked of what 1840’s America was like, most people would say familiar phrases heard in a history class, “The Gold Rush,” “Mexican-American War,” and “Manifest…

The question that was answered in this experiment is, “Which aerobic exercise increases heart rate the most?” If a person runs then their heart rate will increase the most. The independent variable in this project was the different exercises that were done. These were running, jump roping, and doing jumping jacks. The dependent variable was the difference in heart rate after exercising. Some of the control variables were the amount of time that subjects exercised (15 minutes), the age of the…

lactase and EDTA refers to the microfuge tube containing EDTA milk and lactase. The chart show the results of glucose produced from lactase activity in each tube. The control has the greatest average rate of glucose production with a mean of 117.3mg/dL and EDTA has the lowest amount of glucose production rate with a mean of 9.0mg/dL Discussion The specificity of enzymes experiment tested putting lactase into similar solutions of its substrate (lactose and maltose), to see if lactase would…

gas indicates a constant enzyme reaction rate. The activity rate of catalase in figure 1 is calculated to be approximately 0.15mL/sec. The following figures show how this rate of reaction is affected by different external factors. The results in figures 2 and 5 show an increase in either enzyme concentration or substrate concentration will increase the enzyme activity. In figure 2, the 0.75% enzyme concentration had the highest enzyme activity with a rate of 0.11mL/sec; whereas the 0.25% enzyme…