![]() ![]() Thus, I believe my data supported and proved my hypothesis to be true. Additionally, I said: If a substance performs a chemical change, then the substance’s original properties will change because it becomes a new substance. When a magnesium strip was placed into hydrochloricĪcid, it caused the hydrochloric acid to heat up.Ĭhemical a temperature change occurred, aĬandle When light was added to the candle, it causedĪnalysis/Conclusion: In my hypothesis, I stated that: If a substance performs a physical change, then most of the substance’s original properties will stay the same because it does not become a new substance. This caused the Nitrate to immediatelyĬhange colors and ultimately cause the potassium iodide Mixture, the iron fillings were lifted to the magnet andĠ M of Lead Nitrate was poured into 0 M of Iron filings and sulfur were mixed together, forming aĭark green color. A gasĬhemical gas formation was observed along This caused the substance toĬhange from a blue color to a white color. Physical even though the gas formation wasĬopper sulfate pentahydrate was heated above aīunsen burner. This caused the water to boil and steam was Water A beaker filled with water was placed on a hot This mixture caused the liquid toĬhemical gas formation was observed, which Step was poured into a beaker filled with 1 M of The powder form of calcium carbonate from the previous Physical even though a particle size change Where it was crushed up into powder by the pestle. ![]() The calcium carbonate was placed into a mortar Measure 2 g (approximately 1/2 tsp.) of copper sulfate pentahydrate in a crucible.To allow heating, place the clay triangle on top of the tripod and position the Bunsen burner under.Spoon, crucible, crucible tongs, clay triangle, tripod, and a Bunsen burner.) Turn off the hot plate and dispose of the water in a drainįive: Copper Sulfate Pentahydrate (Materials: 2 g copper sulfate pentahydrate, Use the beaker tongs to remove the hot beaker from the hot plate and place on a hot pad. Using a hot plate, heat the water until it boils. When finished, dispose of the mixture by pouring it into a receptacle provided by your teacher.įour: Water (Materials: 40 mL water, 100 mL beaker, hot plate, and a hot pad.) Fill a 100 mL beaker Use the spoon to add crushed calcium carbonate from Step 2 to the hydrochloric acid. ML of 1M hydrochloric acid into a 50 mL beaker. (Materials: same as step two.) Pour approximately 25 Three: Calcium Carbonate and Hydrochloric Acid. Record all changes observed, the type of change, and your reasoning in the data table. Place a 2-inch piece of calcium carbonate (from chalk) in a mortar. Hydrochloric acid, mortar and pestle, spoon, 50 mL, and a beaker.) (Materials: 2 inch piece of calcium carbonate, 25 mL 1M Step One: Gather Materials for each step. Materials: - Calcium carbonate - Mortar and pestle - 3 spoons - Hydrochloric acid - 3-50 mL beakers and 1-100 mL beaker - Hot plate - Hot pad - Copper sulfate - Crucible - Crucible tongs - Clay triangle - Tripod - Bunsen burner - Iron fillings - Sulfur - Petri dish - Magnet - Potassium Iodide - Lead Nitrate - Graduated cylinder - Magnesium ribbon - Thermometer - Tweezers - Candle - Match Lead nitrate, magnesium strip, the melted candle Sulfate pentahydrate, iron filings and sulfur, potassium iodide and lead nitrate, hydrochloric acid,Īnd the candle - Dependent: Hydrochloric acid, the boiled water, the final result of copper sulfate pentahydrateīeing heated up, the mixture of iron filings and sulfur, the combination of potassium iodide and Variables: - Independent: Calcium Carbonate, powder formation of Calcium Carbonate, water, copper Hypothesis: If a material undergoes a chemical change, then it will not retain its original properties because a new substance is formed. Purpose: To be able to distinguish whether an item has undergone physical or chemical change. ![]() Question: How can you distinguish a physical change from a chemical change? Havert Chemistry A 2/10/ Physical and Chemical Changes Lab Report
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