Calcium bicarbonate baking soda
Changing Properties
Calcium chloride reacts with sodium bicarbonate (baking soda) to produce calcium carbonate plus carbon dioxide plus water plus hydrochloric acid plus sodium chloride (table salt). Several notes that we have identified in this activity are: First, the indicator solution provides the water to dissolve the two solids which starts the reaction.
[DOC File]Activity 9-2
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Baking soda = sodium bicarbonate, NaHCO3. Limestone = calcium carbonate, CaCO3. Vinegar = acetic acid, C2H4O2 or CH3COOH. From student. List some signs of chemical reactions. (Consider the difference you would observe between putting a penny in water and putting Alka Seltzer in …
[DOC File]mrsaultclassroom.weebly.com
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Sodium bicarbonate (baking soda) Calcium chloride. phenol red solution. Procedure: Place one spoon full of sodium bicarbonate in beaker #1. Place one heaping spoon full of calcium chloride in beaker #2. Measure ~25ml of phenol red and pour in beaker #1. Swirl to dissolve sodium bicarbonate. Measure ~25ml of phenol red and pour in beaker #2.
[DOC File]Chemical and Physical Changes Lab - CHSD
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Add a small scoop of sodium bicarbonate (baking soda) to the test tube. Stopper the tube, and shake it carefully to dissolve the sodium bicarbonate. Add about 2 mL of acetic acid solution (vinegar). Write down your observations. Discard your solution into the SOLUTIONS waste container Change 2: Get about a 2.5 cm piece of calcium carbonate (chalk).
[DOC File]Chemistry Worksheets
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1) Calcium carbonate decomposes at high temperature to form carbon dioxide and calcium oxide: CaCO3 ( CO2 + CaO. Given that the heat of formation of calcium carbonate is –1207 kJ/mol, the heat of formation of carbon dioxide is –394 kJ/mol, and the heat of formation of calcium oxide is –635 kJ/mol, determine the heat of reaction.
[DOC File]Physical Defences against Pathogens
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2 scoops of calcium chloride. 2 scoops of sodium bicarbonate (baking soda) Procedure: Pour 20mL warm water and 5mL phenol red solution into the bag. Seal the bag. Gently shake the bag. Feel the outside of the bag. Carefully open the bag. Add 5mL of calcium chloride. Seal the bag and gently shake it. Feel outside of bag. Record your observations
[DOC File]VANDERBILT STUDENT VOLUNTEERS FOR SCIENCE
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When calcium chloride was added to the baking soda, nothing happened. When the phenol red solution was added to the baking soda/calcium chloride bag, the color started changing from red to yellow (some students may say they saw some pink color – accept this as well.) (3) The bag became cold (for a short time). (4) The bag may be warm in some ...
[DOCX File]University of Notre Dame
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-Baking soda (sodium bicarbonate) is used around the homes as a leavening agent, an antacid, a fire extinguisher, and a deodorizer in the refrigerator. Calcium chloride is used to melting ice on roads and sidewalks, for reducing dust on dirt roads, and as a drying agent.
[DOC File]www.cusd80.com
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Calcium chloride pellets (CaCl2) Baking soda, sodium bicarbonate (NaHCO3) Phenol red solution (acid/base indicator solution) Measuring cup or graduated cylinder. 2 plastic teaspoons. Plastic cup. 1-gallon Ziploc-type bag. 2 twist ties or rubber bands. Water Procedures: Day of Activity. Before activity: What the teacher will do: Help clarify ...
[DOC File]Chemistry 2202 Worksheet
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Sodium bicarbonate is used in baking as baking soda. What volume of solution can be made from 0.821 mol/L saturated solution of sodium bicarbonate using 1.64 mol of solid sodium bicarbonate? Volume from Mass and Concentration: Chlorine bleach in its solution form is usually sold as a 5% solution of sodium hypochlorite.
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