Patrick Kelly 10/16/12 Physical and Chemical Changes Lab Question: How do you distinguish a physical and chemical change? Hypothesis: If we use these materials and use magnets‚ water‚ burners‚ and filters on the mixtures and elements given we should determine what kind of effect these materials given will have on these mixtures and elements‚ physical or chemical. Procedures: -Part A: Record all observations of Part A in Data Table 1 1. Label each substance on seven pieces of paper
Premium United States Management Marketing
Stazi Belvin Chemical and Physical Lab Changes Lab Report 9/5/2014 I. Purpose- The overall purpose of the lab is to identify chemical and physical changes. II. Safety- To work with the chemicals used in the lab‚ it is required to wear safety goggles to protect your eyes from the fumes when working with the chemicals. It is also required to be cautious when working with the acids used in this lab because they can cause burning and irritation of the skin. Also‚ be cautious as to not inhale the
Premium Chemistry Hydrochloric acid
Chemical Changes VS Physical Changes Lab Report (Full Name) 3rd period Purpose: To observe the difference between chemical and physical changes. Materials: * * Hot plate * Water * Salt * Evaporating dish * Candle * Matches * Ammonium hydroxide * Watch glass * Phenolphthalein * Paper towel * Cornstarch * Iodine * Cup * Alka-Seltzer tablet * Pipet * Milk * Vinegar * Copper II sulfate * Lead II nitrate Safety:
Premium Temperature Thermodynamics Chemistry
footage of this experiment? Initially when I watched this experiment I felt sadden. One that is was necessary in the 70’s for this teacher to need to teach this lesson‚ but most of all how easily swayed these children were. They were so quick to demoralize their classmates‚ solely based on the fact the teacher told them they could. It is a reminder that children are most susceptible in their formative years. It also is a very important experiment as the use of children for social experiments is not
Premium Psychology Experiment Stanford prison experiment
Experiment 5 In the first part of this lab‚ the objective was to get the molar concentration of sodium hydroxide by using the secondary standard‚ sodium hydroxide solution with the primary standard‚ potassium hydrogen phthalate. With this information‚ we could create a second derivative plot‚ which can be used to obtain the exact concentration of the secondary standard‚ sodium hydroxide. Also‚ the indicator can give us these results along with the end points and with the readings from the pH meter;
Premium Sodium hydroxide
grades Change And The World Changes For You • Home Page» • Miscellaneous Research Papers Change And The World Changes For You CHANGE AND THE WORLD CHANGES FOR YOU! The famous social worker THE MAHATMA of our country said a famous adage "BE THE CHANGE THAT YOU WISH TO SEE IN THE WORLD" for us to adhere. Change is not going to come if we wait for some other person‚ or if we are waiting for some other time we are the ones for whom we were waiting for‚ we are the change that we seek
Premium World War II Change World War I
“A child who‚more than anything else‚ is a spontaneous observer of nature‚ certainly needs to have at his disposal material upon which he can work.” As our lives become more technologically advanced and driven many children have very little access to a natural habitat in their neighbourhood environment.Young children develop their sensory‚cognitive‚gross and motor skills while in relationship to the natural world.The function of the school is to supply children with interesting information and
Premium Maria Montessori Educational psychology Montessori method
2013 Name : Ryan annasdass arokiasamy ID : 1206875 Group Members : Chan Pei Qie‚Chong Ven Yen Name : Ryan annasdass arokiasamy ID : 1206875 Group Members : Chan Pei Qie‚Chong Ven Yen experiment 19 kinetics : the study of a chemical reaction experiment 19 kinetics : the study of a chemical reaction Results Part A [I-] / mol dm-3 | [S2O82-] / mol dm-3 | [S2O32-] / mol dm-3 | Time /s | Rate of I2 formation / mol dm-3 s-1 | 0.2 | 0.2 | 0.01 | 1.25 | 0.1600 | 0.2 | 0.15 | 0.01
Premium Chemical reaction Chemistry Chemical kinetics
the Enthalpy change of combustion Abstract This simple experiment is carried out to show the difference in the enthalpy change of combustion between two fuels‚ hexane and methanol. These fuels are individually weighed before and after used as heat source to heat water in a calorimeter. The result is used to find out amount of heat transferred by the fuel‚ amount of fuel used and the enthalpy change of combustion. Introduction Enthalpy change of combustion is the enthalpy change when a substance
Premium Thermodynamics Heat Energy
In our everyday life‚ we make decisions‚ decisions that may change the world we live in‚ if only slightly. However‚ each decision we make has an impact on our life and is therefore important. Each time we choose one thing over another‚ we draw from our previous knowledge to make the best choice we can. However‚ the ideas and thoughts that actually dictate how we make our choices are the morals that we base our life on. For some‚ these morals are simple and do not reflect what their life means to
Premium Meaning of life