https://padlet.com/milescohan2023/arzxnmr5by5g By: Miles Cohan en-us 2019-02-22 17:00:07 UTC 2025-11-12 16:42:49 UTC hello@padlet.com milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334227953 2019-02-22 17:01:43 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334227953 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228023 2019-02-22 17:01:51 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228023 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228045 2019-02-22 17:01:53 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228045 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228091 2019-02-22 17:01:58 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228091 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228111 2019-02-22 17:02:00 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228111 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228136 2019-02-22 17:02:04 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228136 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228955 (of a liquid) produce bubbles of gas and make a hissing sound and this is a way to tell if a chemical reaction has happened. ]]> 2019-02-22 17:03:42 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334228955 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334229697 a distinctive smell that can come off during a chemical reaction. ]]> 2019-02-22 17:05:21 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334229697 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230049 When the color changes during a reaction it could mean that it is chemical. ]]> 2019-02-22 17:06:12 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230049 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230065 When the temperature changes (cold or hot) there could have been a chemical reaction. ]]> 2019-02-22 17:06:14 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230065 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230085 When a solid is formed during a chemical reaction, this could happen in various ways, for example, crystals forming. ]]> 2019-02-22 17:06:15 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230085 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230111 A new substance being formed is NEEDED for the reaction to be identified as a chemical reaction. ]]> 2019-02-22 17:06:18 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334230111 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334309195 3NaHCO3 + C6H8O7 → C6H5Na3O7 + 3CO2 + 3H2O.

This is the chemical equation for Alka Seltzer tablet. The fizz is carbon dioxide being released. ]]> 2019-02-22 19:38:22 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334309195 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334310811 2019-02-22 19:41:17 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334310811 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334312606 This is an alka seltzer tablet being dissolved in water. There is fizzing formed which shows that there is a chemical reaction being formed. ]]> 2019-02-22 19:45:07 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334312606 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334314069 2019-02-22 19:48:02 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334314069 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334314421  3 NaHCO3 + C6H8O7 --------> 3 CO2 + C6H5Na3O7 + 3 H2O.

Also Known as, 
Base + Acid --------> Gas + Salt + Water. Sodium bicarbonate + Citric Acid --------> Carbon dioxide + Sodium citrate + Water]]> 2019-02-22 19:48:49 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334314421 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334314770 This is a bath bomb being dissolved in water and this is causing fizzing. Fizz is a sign of a chemical reaction. ]]> 2019-02-22 19:49:32 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334314770 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334315061 https://www.youtube.com/watch?v=EcWuHXYGbKw
https://www.ocado.com/productImages/708/70885011_1_640x640.jpg?identifier=6c6524bd8d46c50cfc96b940d807f0b0]]> 2019-02-22 19:50:10 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334315061 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334960862 2019-02-25 16:55:43 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334960862 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334961462 This is a cookie being formed and after the baking of a cookie there is a smell (aroma) that is made that shows that there is a chemical reaction. ]]> 2019-02-25 16:56:47 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334961462 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334962470 2019-02-25 16:58:15 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334962470 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334962597 This is bacon being made and there is a chemical reaction being made because there is an aroma after it is made. ]]> 2019-02-25 16:58:24 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334962597 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334972526 2019-02-25 17:12:48 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334972526 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334972629 Kool-Aid is a widely known powder that is used to give water a flavor. When this powder is dumped into the water, a color comes up and changes, usually this color is red. This is an example of a chemical change because there is a color change. ]]> 2019-02-25 17:12:58 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/334972629 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335003834 2019-02-25 18:05:27 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335003834 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335003905 This is a chemical reaction between iodine and starch. When the iodine is added to starch there will be a very intense black-blue color. "Iodine is not very soluble in water, therefore the iodine reagent is made by dissolving iodine in water in the presence of potassium iodide"]]> 2019-02-25 18:05:35 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335003905 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335097694 2019-02-25 20:48:24 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335097694 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335097732 Baking soda and vinegar is an example of where a chemical change is happening from a temperature change. When these two substances mix, a gas is formed causing an endothermic reaction which means that cooling is going to happen and this will decrease the temperature. ]]> 2019-02-25 20:48:31 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335097732 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335100337 2019-02-25 20:55:11 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335100337 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335100386 Dissolving Calcium Chloride in water causes and exothermic reaction, this means that the temperature changed to be hotter and this is the evidence of a chemical change. You can measure this by using a thermometer to see the CaCl2 + H20. ]]> 2019-02-25 20:55:17 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/335100386 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336429592 2019-02-28 15:03:17 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336429592 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336430339 Pb(NO3)2 + KI = Lead Nitrate. The reason that this happens is because... "A precipitation reaction occurs when an ionic substance comes out of solution and forms an insoluble (or slightly soluble) solid. The solid which comes out of solution is called a precipitate. This can occur when two soluble salts (ionic compounds) are mixed and form an insoluble one—the precipitate" (Wiki/General_Chemistry).]]> 2019-02-28 15:04:10 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336430339 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336432973 2019-02-28 15:08:13 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336432973 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336433168 This is another example of a chemical reaction where a solid is formed, also known as the precipitant. It is silver nitrate being added to table salt and this forms the new solid. ]]> 2019-02-28 15:08:31 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336433168 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336433238 2019-02-28 15:08:37 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336433238 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336438256 Baking Powder and Water. "Using chemical change to identify and unknown baking powder was the only substance that reacted with water to produce a gas. ... It is a combination of substances that, when mixed withwater, react to release carbon dioxide gas. Baking powder can be made from baking soda, cream of tartar, and corn starch."]]> 2019-02-28 15:15:46 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336438256 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336517647 2019-02-28 17:19:00 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336517647 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336518730 2019-02-28 17:20:45 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336518730 milescohan2023 https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336518999 This is an example of a chemical change because the wood is being burned by fire and ashes are formed and so is smoke, this smoke travels up through the chimney. The ashes cannot be turned back into the wood which proves even more thoroughly that this was a chemical change that took place. ]]> 2019-02-28 17:21:09 UTC https://padlet.com/milescohan2023/arzxnmr5by5g/wish/336518999