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In this Chemical Reaction they mixed hydrogen peroxide with iron nitrate. The substance starts fizzing because the hydrogen peroxide is being decomposed and a new gas starts to form. After a few minutes, the substance bubbled all the way to the top of the beaker and fizzes over. This is known as elephant toothpaste. The chemical equation for this is:

2H^2O + O^2

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In this Chemical Reaction, students poured odorless iorn fillings into a bowl and mixed it with vinegar. It changes the smell of the mixture to be a distinct odor that smells like rotten eggs. The chemical equation for this is:

1 Fe + 2 CH3COOH + 4H2O ◊ Fe(CH3COO)2. 4H2O + 1 H2.

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In this chemical reaction he poured a potassium permanganate solution into a sugar and caustic soda solution. It was then mixed in a magnetic stirrer for several minutes. The solution went from purple, to blue, to green, to a yellowish color, chemically changing the substance. The chemical formula for this is:

KMnO4 (violet) → K2MnO4 (green) → MnO2

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Video Lab: Chemical reaction: Change in Color

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In this chemical reaction, they took lemons and first added food coloring to a half of a lemon, and over covered it in baking soda. They poked holes in the lemon, mixing the lemon juice with the baking soda and it created a fizzy substance that bubbled over the lemons. The chemical formula is: C6H807+3NaHCO3>>Na3C6H507+3H2CO3.

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FiZZy Lemons 🍋 | experiment | chemical reaction

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This is a chemical change of a rotting peach. It is a time lapse of many days of a rotting peach, and it definitely changes the smell of the peach and is a chemical change. The chemical formula for this is: E + S ↔ ES ↔ E + P

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In this chemical reaction he mixes copper chloride and sodium sulfate together and it went from blue to green. It is a chemical change because it became a new substance and changed colors. The chemical formula for this is: 2 N a C l ( a q ) + C u S O 4 ( a q ) → N a 2 S O 4 ( a q ) + C u C l 2 ( s )

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Properties of Matter: Color Change - Evidence of a Chemical Reaction

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In this Chemical Reaction, Hydrochloric acid is poured into Zinc granules. Immediately after the temperature rises from around 30 degrees celsius, to 78 degrees celsius. Since the temperature increased, it is an exothermic reaction, and because there was a temperature change it is a chemical reaction. The chemical equation is: Zn ( s ) Zinc + HCl ( aq ) Hydrochloric acid → ZnCl2 ( aq ) Zinc chloride + H 2 ( g

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Chemical Reaction: Change in Temperature

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In this chemical reaction, he poured baking soda into vinegar to make multiple chemical changes. Not only did this reaction fizz, but it had a chance in temperature. The vinegar started as 17 degrees celsius, and after the baking soda was added it dropped to around 0 degrees celsius. The chemical equation for this is: CH3COOH + NaHCO3 = CH3COONa + CO2 + H2O

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In this Chemical Reaction he mixes copper sulfate and sodium hydroxide. The mixture at first turned blue, and then chunks of the liquid rose to the top, producing a solid, and a precipitate change. The chemical equation for this is: CuS04 + 2Na0H - Cu{0H}2 + Na2S04

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Properties of Matter: Formation of Precipitate—Evidence of Chemical Change

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In this Chemical Reaction it is a milk time lapse. Over time the milk spoils and it goes through a few chemical changes, one of while is precipitation. The spoiled milk can become chunky and produce solid chunks which is a chemical change. The chemical equation for this is: C12H22O11+H2O→4CH3CH (OH) COOH

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In this Chemical Reaction, there is thionin and leucothionin in two separate beakers. One is violet and the other is colorless, but when these are placed in the light the colors change and it is a chemical change produced by the light. The new substance would be the new color that the light produced. The chemical equation for this is: +2H^+ +2 Fe^2+

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A Chemical Reaction that is Powered by Light

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In this Chemical Reaction, they added water, a starch palet, and sodium sulfate in one cup. In the other cup they added sodium iodate and then they mixed the two together. At first while pouring it fizzed up and then after a few second it changed color to a black new substance.