https://padlet.com/tomaszapp2022/b9uqvihubu4y en-us 2018-03-27 20:31:13 UTC 2025-12-26 06:09:19 UTC hello@padlet.com tomaszapp2022 https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688073 This is a video of a guy who grinds iron filings and sulfur powder together. Then he pours the reactants into two equal amounts into two different bowls. He heats one of the reactants strongly, and then a new compound was formed. If you take the magnet on the first bowl then all of the iron filings will be attracted. If you take a magnet to the second bowl then there will be no magnetic pull on the iron filings because ion lost its properties. The first bowl formed a heterogeneous mixture and the second formed a compound. The chemical equation for the unheated mixture is (Fe)(S) and when you heat then they form ferrous sulfide (FeS).]]> 2018-03-27 20:31:13 UTC https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688073 tomaszapp2022 https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688074 this video shows two examples of precipitate. In the first example she mixes sodium carbonate solution with copper sulfate solution. One of the products is not soluble in the other so it makes a solid. The chemical equation for this is Na2CO3 + CuSO4 which creates Na2SO4+ CuCO3. In the second experiment she starts off with the same reactant and mixes it with Iron sulfate instead of copper sulfate. She shows everyone the solid properties in the beaker. The chemical equation for this is FeSO4 + Na2CO3= FeCO3 + Na2SO4.]]> 2018-03-27 20:31:13 UTC https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688074 tomaszapp2022 https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688075 This is a video that shows the temperature change when you mix vinegar and baking soda together. The person has a thermometer to show the temperature change. Before the mixture the temperature is 23.3 C and after the mixture it drops all the way to the 18.3 C. This would be an endothermic reaction because the temperature gets colder. The chemical equation for vinegar and baking soda mixing is CH3COOH + NaHCO3 = CH3COONa + CO2 + H2O.]]> 2018-03-27 20:31:13 UTC https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688075 tomaszapp2022 https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688076 There is a video on making a chameleon like chemical reaction color change. They mix many ingredients such as water, a tablet, and baking soda into a beaker. She puts the beaker on a stove to get a KMnO4- solution. next she grabs another beaker with water and pours some other things to get KMnO4 solution. She pours the two solutions together to get a MnO4^2- ion which creates the chemical color change and the product of the reactants.]]> 2018-03-27 20:31:13 UTC https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688076 tomaszapp2022 https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688077 One example of an aroma chemical change is baking a cake. Baking soda's chemical formula is 2NaHCO3. It is a leavening agent that causes a cake to rise by producing bubbles of carbon dioxide, or CO2, as well as the byproducts of water (H2O) and sodium carbonate (Na2CO3). All of this creates the chemical formula NaHCO3 Na2CO3 + H2O + CO2.]]> 2018-03-27 20:31:13 UTC https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688077 tomaszapp2022 https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688078 Science Bob doing an experiment to make a fizz reaction. This is a chemical reaction because he mixing the reactants to turn into the fizz. He has vinegar and baking soda. The vinegar mixes with the baking soda to produce the chemicals that make the balloon inflate. The equation for the reaction is CH3COOH + NaHCO3 = CH3CONa + CO2 + H2O.]]> 2018-03-27 20:31:13 UTC https://padlet.com/tomaszapp2022/b9uqvihubu4y/wish/246688078