Lab 4: Physical & Chemical Properties Purpose: The purpose of this lab is to distinguish if different substances react to heat or cold and if a solution is added to it during the experiment will it change the substance or leave it the same. Throughout the different tests each substance is put through a series of tests to determine if it changes in any way in regards to color‚ odor‚ or consistency from the start of the experiment. The results will be documented in table 1. Data Table 1: Solubility
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Performed: 04/02/14 Date Submitted: 04/15/14 Name: Lisa Jacoby Title: Physical and Chemical Properties Purpose: Investigating the chemical properties of pure chemical substances as well as exploring the physical properties of pure chemical substances Procedure: 1. I half-filled one well of a 24-well plate with 6M HCl and half-filled a second well of the 24-well plate with 6 M NaOH. I then sucked up these chemicals into their labeled pipets. I then set aside for later 2. I performed
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Physical and Chemical Changes Say you are presented with two beakers‚ beaker A and beaker B‚ each containing a white‚ powdery compound. * a. From your initial observations‚ you suspect that the two beakers contain the same compound. Describe‚ in general terms‚ some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound. You may try some of the followings: * Dissolving in water * Dissolving in different chemical solution
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Naphthalene Ball in Water Objective: In this experiment‚ we will determine if the naphthalene can be dissolve in water or not. And what will happen in the filter paper if we stick it in the funnel and let it absorbed the fumes in the boiling water with powdered naphthalene. Materials: Evaporating dish Spatula Watch Glass Filter paper Tripod Mortar and pestle Alcohol Lamp Funnel Beaker Data: Naphthalene 1. white crystalline compound 2. has a strong odor 3. round
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interests and keep busy. Physical activity is especially important for children‚ so what better than to play a sport? Sports provide a number of benefits for youth such as staying fit‚ building social skills and relationships‚ and finally learning personal values. Playing sports regularly allows for children to stay fit and have strong healthy bodies. Activities such as basketball‚ soccer‚ and volleyball use exercises such as running‚ jumping‚ and stretching‚ which aid in physical and mental health.
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Human Anatomy & Physiology Version 8.0 Physioex Exercise 8 CHEMICAL AND PHYSICAL PROCESSES OF DIGESTION - ANSWERS Please note: I do not include the charts as you still have to do the experiments and print the data and graphs. Activity 1 What do tubes 2‚ 6‚ and 7 reveal about pH and amylase activity? Hint: What variable was changed in the procedure? a. maximum of amylase is at pH 7.0 (tubes 2 & 5‚ brownish red) and pH 9.0 showed little activity (tubes 6 & 7‚ green) Which pH
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In modern life‚ more people realize that regular exercise on people’s lives have numerous benefits.Regular exercise is a scientific exercise methods that people according to their physical condition according to certain rules of physical exercise.This essay will explain that regular physical exercise essential part of the school curriculum.It brings huge benefits both of body and soul. First‚ regular physical exercise is good for the body recognized by everyone.It can help you increase your body
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Pilates Pilates is a form of exercise which focuses primarily on improving flexibility‚ strength and overall body awareness. Pilates consists of a series of controlled movements that can be performed on either the floor with a mat‚ or specially designed spring-resistant equipment which is all supervised by a trained Pilate’s instructor. The exercises of Pilate’s focus on strengthening ones core while continuously breathing deeply. Created in the 1920’s by a physical trainer‚ Joseph Pilates‚ with
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The benefits of physical exercise for adults are many and varied. Studies show that an active lifestyle is essential for maintaining good health. Rollo‚ (2007) list some benefits which include reduced risk of heart disease‚ weight loss‚ improved self image‚ relief from anxiety and depression. This essay will address these physiological and psychological benefits of physical exercise. Heart health Physical exercise is one of the best protective measures against heart disease (Bird & Reynolds
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from a balanced diet‚ sports are necessary to maintain our health. If we do not play regularly‚ our body does not develop. Our body becomes weak. We may become a target for many of the diseases. Sports are necessary for maintaining our health and physical fitness. Sports also inculcate good qualities in us. Involving oneself in competitive sports will encourage healthy competition. Taking up captain-ship in team games will inculcate leadership qualities. Playing as a team will encourage co-operation
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