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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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
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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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Chemical Change Lab Name Data Table 1: |Chemicals |Well # |Reaction on White Paper |Reaction on Dark Paper | |NaHCO3 + HCl |A6 |Remains clear. |Remains clear. | |HCl + Blue Dye |B6 |Orange color. |Cannot distinguish color
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Describe the physical changes adolescents‚ boys and girls experience during this stage of life.During this chapter of life many physical changes occur. Children begin to grow several inches as they begin to change and transform into young adults. A very significant change in height and weight for both boys and girls takes place. Girls average height increases around this time approximately 3.5 inches each year‚ while boys on average around 4.1 inches every year. As we all know both sexes pass through
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Observations of Chemical and Physical Changes Derrick Davis Lab partner: None Location: My house Date Performed 25 Feb 15; 1600 CHE111-CO2 Photo 1 (Photo of me properly wearing safety goggles holding the student information card) Abstract: In chemistry it is important to understand the difference between physical and chemical changes. The objective of this experiment was to perform tests using heat or chemical mediators and observe the results for any physical or chemical changes. Various materials
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Activity 2 I Problem: Identifying the products of chemical change. II Hypothesis: I think that the chemical change is an irreversible process. The wet iron filings by the next day it will turn into rusting material because it is exposed to the atmosphere. While the dry iron filings is not III Materials: The setup in the previous activity‚ small plate‚ dry iron filings. IV Procedure: 1. Place the iron filings on a dry plate. 2. Compare the physical properties of the dry and wet iron filings. 3
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of two or more elements that are chemically bonded. Water is an example of a compound because it is one of many compounds that consist of molecules. The hydrogen and oxygen molecules are chemically bonded to form a water molecule. Properties and Changes in Matter Every substance‚ whether an element or compound‚ has characteristic properties. Chemists use these properties to distinguish different substances and then use their knowledge of characteristics to separate them. A property may be a characteristic
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Santiago Canales Partner: Cody Patterson MR. G Physical and Chemical Changes lab Pre lab discussion 1. a- chemical change b- chemical change c- physical change d- chemical change e- physical change 2. Change in color‚ gas‚ light or smoke and heat. 3.Becuase if the temperature changes you can notice it better this way. 4. I will use goggles and cloves all the time‚ I also need to point dangerous materials away from other people and I should be specially cautious with hydrochloric
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Abstract: The objective of Experiment 1 was to observe some chemical changes. While observing the chemical changes in elements I also experimented with household cleaners to see how much chemical properties relate to our daily lives. Chemical changes occur all around me and I go without noticing them all the time without a second thought. This experiment opens my eyes to different chemical reactions occurring around me. This experiment also shows the importance of dilution. If I did not dilute something
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