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
Premium Chemistry Chemical reaction Chemical substance
Physical and Chemical Properties Chem 107 6-4-2013 A pure substance or chemical substance is a material that is homogeneous. It has consistent properties throughout the sample.” Pure substances can be described by both physical and chemical properties”. Physical properties can include‚ color‚ odor‚ melting point‚ boiling point‚ and solubility in various solvents‚ etc. The observation of these physical properties does not involve any chemical change in the substance‚ it is still the same
Premium Chemical reaction Chemistry Color
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
Premium Chemistry Arithmetic Decimal
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.
Premium Physical exercise Learning Sociology
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
Premium Water Nitric acid Ammonia
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
Premium Exercise Education Old age
REVIEW SHEET EXERCISE 2 Skeletal Muscle Physiology NAME: LAB TIME/DATE:9pm.. 4.8.11 Electrical Stimulation 1. Name each phase of a typical muscle twitch‚ and‚ on the following line‚ describe what is happening in each phase. a. Latent-stage from rest to muscle tension begins b. Contraction-At this stage the muscle reaches its peak in contraction c. Relaxation- muscle is shortened‚ returns to zero and back initial length. 2. In Activity 2‚ how long was the latent period? ___2
Premium Muscular system Muscle contraction Skeletal muscle
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
Premium Obesity Weight loss Physical exercise
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
Premium Physical exercise Weight loss English-language films
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
Premium Physical exercise Physical fitness Obesity