Access to nursing Group 2 Effects of pH on enzyme activity Contents Front cover Aim Introduction Hypothesis Prediction Variables Materials Methods Results Discussion Conclusion Bibliography Aim The aim of the experiment is to see the enzyme amylase catalyse starch in a chemical reaction. | | Introduction Enzymes are proteins. They act as catalysts‚ allowing chemical reactions to take place by lowering the
Premium Enzyme Glucose PH
Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
Premium Green Purple Blue
Alloy - An alloy is a substance made by melting two or more elements together‚ at least one of them a metal. An Example: Examples of alloys include brass‚ bronze‚ 14k gold‚ and sterling silver. covalent bond - A covalent bond is a chemical link between two atoms in which electrons are shared between them. An Example: There is covalent between the oxygen and each hydrogen in (H 2 O). Each of the bonds contains two electrons - one from a hydrogen atom and one from the oxygen atom. Both atoms
Premium Oxygen Hydrogen Carbon
Peter the Apostle Peter the apostle was born BC 15 or so. Peter the apostle has been said to look like a very weak man. He was medium height‚ more so tall‚ and had very pale skin. Also‚ it has been said that Peter had a short‚ thick‚ curled beard‚ and very thin eyebrows‚ if not‚ no eyebrows at all. Another character trait of the Peter the apostle is that his eyes were almost all black‚ but had red marks due to weeping frequently. Peter the apostle‚ the most prominent of Jesus’ twelve disciples
Premium Saint Peter Jesus New Testament
“If you prick us do we not bleed? If you tickle us do‚ we not laugh? If you poison us do‚ we not die? And if you wrong us shall we not revenge?” Shakespeare made it clear for all of us .he made it clear that revenge is a natural human reaction just like laughing when we are tickled or bleeding when we are pricked. In Ph.D. Karyn Hall’s Article Revenge: Will You Feel Better? She supports Shakespeare’s claim “Revenge seems to be one of the deepest instincts we have. Who hasn’t said‚ "I hope he gets
Premium KILL Hamlet William Shakespeare
Observations of Chemical and Physical Change PART 1 – OBSERVATIONS OF CHEMICAL CHANGE No credit will be given for this lab report if the Data section is not completely filled out and if the required photographs are not received. At least one photograph must show the student’s face. OBJECTIVES 1. Observe physical and chemical changes. 2. Define physical and chemical change. 3. Identify the relationship between a chemical change and a chemical reaction. 4. Observe several indicators of a chemical reaction
Premium Chemical reaction Chemistry Sodium bicarbonate
the effects of an incorrect pH level. pH measures the concentration of hydronium ions and can be modeled by the function p(t) = −log10t. The variable t represents the amount of hydronium ions; p(t) gives the resulting pH level. Water at 25 degrees Celsius has a pH of 7. Anything that has a pH less than 7 is called acidic‚ a pH above 7 is basic‚ or alkaline. Seawater has a pH just more than 8‚ whereas lemonade has a pH of approximately 3. 1) Create a graph of the pH function either by hand or using
Premium Water Acid Base
Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best results when testing the pH within a solution. The pH‚ which stands for the proportion of hydrogen ions in a solution‚ could be acidic (acidosis)‚ neutral or basic (alkaline). The pH scale goes from numbers 1 through 14. A pH of 7 is neutral; meaning the amount of hydrogen
Premium PH
Chemical Formulas and Chemical Compounds MIXED REVIEW SHORT ANSWER Answer the following questions in the space provided. 1. Write formulas for the following compounds: CuCO3 a. copper(II) carbonate Na2SO3 b. sodium sulfite (NH4)3PO4 c. ammonium phosphate SnS2 d. tin(IV) sulfide HNO2 e. nitrous acid 2. Write the Stock names for the following compounds: magnesium perchlorate a. Mg(ClO4)2 iron(II) nitrate b. Fe(NO3)2 iron(III) nitrite c. Fe(NO2)3 cobalt(II) oxide d. CoO nitrogen(V) oxide
Free Oxygen Nitrogen Carbon dioxide
University’s wooded areas‚ the oldest was created in 1989 the second was created in 1994 and the youngest plot was created in 1999. For the hypothesis to be tested‚ there were soil PH meters to test the amount of PH in each plot’s soil. The hypothesis was incorrect; there was not a significant difference in the means of the PH from the oldest plot compared to the youngest plot. Introduction The definition of vegetation is plants considered collectively especially those found in a particular area
Premium Statistical significance Soil Erosion