extract RED VELVET CAKE: 2 1/2 cups all purpose flour 1 1/2 cups granulated white sugar 3 tablespoons unsweetened cocoa powder 1 1/2 teaspoons baking soda 1-teaspoon salt 2 large eggs‚ at room temperature 1 1/2 cups vegetable oil 1-cup buttermilk 1/4 cup (two 1-ounce bottles) red food coloring 2 teaspoons vanilla extract 2 teaspoons white vinegar CREAM CHEESE FROSTING: 2 1/2 cups powdered sugar‚ sifted lightly to remove any lumps Two (8-ounce) packages cream cheese‚ at room temperature
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Cydney Kessler Date of Experiment: 6/9/15 Report Submitted: June 10‚ 2015 Title: Observations of Chemical and Physical Changes Purpose: the purpose of this lab experiment is that I will be able to decipher the difference between a chemical and physical change. I will be about to tell whether a chemical change has occurred during the experiment or if it was a physical change and I will be
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different substances (cooking ingredients) were tested on‚ plus the substance on Smeddy‚ with three different liquids. The five substances tested on were baking powder‚ baking soda‚ cornstarch‚ sugar‚ and Unknown A (the substance Smeddy had). The liquids used to analyze the chemical and physical changes on the substances were water (H2O)‚ vinegar‚ and an iodine solution. In a spot plate‚ a small amount of each substance was put into three separate spots and and
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• Reacts explosively with chlorine gas: chemical E. Classify the following changes as physical or chemical: • Water freezes at 0oC: Physical • Baking soda when combined with vinegar produces bubbles: Chemical • Mothballs gradually disappear at room temperature: Physical • Ice cubes in a freezer get smaller with time: Physcial • Baking soda loses mass as it is heated:Chemical • Tarnishing of silver:Chemical F. How would you show that dissolving table salt is a physical change? If it
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H2 bulb from Step 1‚ I placed the bulb over the O2 gas delivery tube and displaced the rest of the water with oxygen. I removed the pipet bulb and introduced the gas to the flame. I observed no reaction with this gas. Step 4. Using the Baking soda and white vinegar‚ I combined the two in the gas delivery tube and waited for the reaction to settle before attaching the stopper. I filled another pipet bulb
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33 Potent Home Remedies for Colon Cleansing 1. Apple Juice Apples contain plenty of fiber which can help bulk your stool thus making it easy to pass and get rid of it. Apples are very effective at preventing the growth of cancerous cells in the colon by inhibit their growth. To use this remedy you need to blend small pieces of an apple with a cup of water. Drink the juice and wait for about 30 minutes to drink water. Follow this remedy every day for a week. 2. Yoghurt Yoghurt contains antioxidants
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Reacts explosively with chlorine gas: Chemical Classify the following changes as physical or chemical: • Water freezes at 0oC: Chemical • Baking soda when combined with vinegar produces bubbles: Chemical • Mothballs gradually disappear at room temperature: Physical • Ice cubes in a freezer get smaller with time: Physical • Baking soda loses mass as it is heated:
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LAB REPORT 4 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
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physical chemical properties essay Oakland Schools SCoPE Science Assessment Packet 7th Grade Unit 2 – Physical and Chemical Properties and Changes of Matter Assessment Packet Grade 7‚ Unit 2: Physical and Chemical Properties and Changes of Matter Overview This packet contains a set of assessment resources to be used with the Physical and Chemical Properties and Changes of Matter Unit of the 7th grade Scope Science Curriculum. A test blue print is
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metallic color – physical Turns gray in air – chemical Melts at 98oC – physical Reacts explosively with chlorine - chemical E - Classify the following changes as physical or chemical: Water freezes at OoC - physical Baking soda when combined with vinegar produces bubbles:- chemical Mothballs gradually disappear at room temperature – physical Ice cubes in a freezer get smaller with time –physical
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