best results using Imperial Sugar and Dixie Crystals) Dish soap Water Tablespoon Scissors Pipette Cup Adult supervision Bubbles form because of a combination of water’s hydrogen bonds and the oily film you can see shimmer in the light. The oily film you see is actually two separate layers of soap attached to‚ and surrounding‚ hydrogen-bonded water. Solar Oven S’mores Materials • Pizza box • Two clear sheet protectors • Black construction paper • Duct tape • Clear masking or packing tape •
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AP BIOLOGY Lab 5 Cellular Respiration Objective: To calculate the rate of CR from the data. To then relate gas production to respiration rate. Then test the rate of CR in germinating versus non-germinating seeds in a controlled experiment and then test the effect of temperature on the rate of CR in the germinating versus non-germinated seeds in a controlled experiment. Analysis: 1. The CR is higher in the germinating peas in the cold water rather than in the beads or non-germinating peas
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Moment of Inertia and Rotational Motion Garret Hebert PHY 2311 Tues 1:00 garret.hebert@hindscc.edu Abstract: During this lab we will study what rotational Inertia is and how different shapes of masses and different masses behave inertially when compared to each other. We will specifically study the differences of inertia between a disk and a ring. We will use increasing forces to induce angular acceleration of both a disk and a ring of a certain mass. We will then then measure the differences
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Tittle : Investigation of the Enzymatic Effects of Materials on Hydrogen Peroxide Solution Objective: To investigates the enzymatic effect of various materials in the hydrogen peroxide solution. Table 1 Test Tube Contents with 5 cm3 hydrogen peroxide Observations before and after using wood splint Observation of after Observation of after adding hydrogen using wooden glowing peroxide splinter 1 Fresh liver Moderate
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Conservation of Mass Lab Author: Aubrey Bryant Team Members: Elianna Chavez‚ Berkley BresemannDate of Experiment: Date Report Submitted: September 30‚ 2014 Instructor: Josh GeisingerClass: Chemistry Purpose: The purpose of this experiment was to use the Law of Conservation of Mass and the Law of Definite Proportions to determine the quantity of zinc chloride that is produced in a chemical change from a given amount of zinc. Background: We used two important laws of chemistry in this lab. Firstly
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There are 2 additional electrons in the outer shell. Oxygen is more electronegative than hydrogen What type of bond joins the carbon atom to each of the hydrogen atoms? Question #13 Each carbon-hydrogen bond involves a single pair of equally shared electrons. What type of bond is joining the two hydrogen atoms? Question #8 A covalent bond is one in which electron pairs are shared. A molecule is defined as two or more atoms
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correct choice for each question. Answer all questions on the Scantron sheet by filling in the proper bubble with a #2 pencil. If you change an answer‚ erase the undesired mark thoroughly. Be sure to fill in the boxes for your student number‚ name and lab section; then correctly fill in the corresponding bubbles beneath them. A periodic table and other useful information are attached to the back of the exam. There are 4 exam pages and 26 questions. Check to be sure you have answered them all! 1. (zero
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types of chemical formulas? 1) atoms‚ ions‚ molecules 2) metals‚ nonmetals‚ metalloids 3) empirical‚ molecular‚ structural 4) synthesis‚ decomposition‚ neutralization 11. What is the total number of neon atoms contained in 20.2 grams of neon gas? 3) 3.01 × 1023 1) 1.01 × 1024 2) 2.02 × 1024 4) 6.02 × 1023 12. Given the balanced equation: X + Cl2 - C2H5Cl + HCl Which molecule is represented by X? 1) C2H4 2) C2H6 3) C3H6 4) C3H8 13. Which equation is correctly balanced? 3) 2 H2 +
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Problem 38: Gas Mileage To determine: The driving time for a given trip distance and average speed. Solution: Driving time for 1500 mile trip with an average speed of 60 mile per hour is 25 hours and that with an average speed of 75 mile per hour is 20 hours. Answer: Driving time for 1500 mile trip with an average speed of 60 mile per hour is 25 hoursand that with an average speed of 75 mile per hour is 20 hours. Explanation: Given: Trip Distance = 1500 miles "Trip Distance =1500 miles"
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Butane Lab Purpose The purpose of this lab is to determine the molar mass of Butane. Materials 1. funnel 2. thermometer 3. bucket 4. butane lighter 5. tap water 6. graduated cylinder 7. electronic balance Procedure 1. Rinse bucket and fill it ¾ way 2. Rinse glassware 3. Place thermometer in tray 4. Record pressure of Mercury 5. Record temperature
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