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The two reactants in this experiment are vinegar and baking soda.When you mix those two reactants in an open system the substance became fizzy because there was a gas produced. The gas produced is a chemical reaction.When you mix baking soda and vinegar in a closed system the results were the same but the gas is not able to escape so that causes an explosion in a closed container or blows up the balloon. Mass did not change due to this mixture it just  created a new product of carbon dioxide as the law of conservation of mass states.

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In this experiment we are combining vinegar and baking soda. Combining vinegar and baking soda will form a chemical reaction, because after combining them, the substances are broken down and rearranged, which means that they become into new substances that have different properties. Now that I know it is a chemical change, which makes the vinegar and baking soda the reactants, and the products are sodium acetate, water, and carbon dioxide. The experiment is separated into 2 parts, the first one is mixing baking soda and vinegar directly in a flask, in other words an opened system. The 2nd one is mixing baking soda and vinegar inside a flask with its opening closed by a ballon in other words a closed system. After mixing the reactants in both flasks, the mass of matter in the 1st flask becomes less than before, which does not follow the law of conservation of mass, but the the mass in the 2nd flask remains the same. The mass in the 1st flask is less than before because the carbon dioxide escaped.

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Erin Sidereas-Law of Conservation of Mass Demonstration Findings

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Erin Sidereas-Law of Conservation of Mass Demonstration Findings

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In this lab, we used vinegar and baking soda to create a chemical reaction, so we could see if the amount of matter before and after the chemical reaction were the same. The vinegar (acetic acid) and the baking soda (sodium bicarbonate) were the reactants that yielded the products which were sodium acetate, water, and carbon dioxide. We performed the experiment by creating a closed system (funnel with balloon on top to enclose reactants) and an open system (funnel with reactants).  We then measured the mass of both funnels before, during, and after the chemical reaction. We found out that the closed system had the same mass before and after the experiment since it was able to enclose the carbon dioxide, in comparison to the open system, that let the carbon dioxide escape into the air. With these findings, we came to the conclusion that the Law of Conservation of Mass that states that the mass of substances does not change during a chemical change, applies to closed systems, since no matter is able to escape.

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In this chemical reaction the reactants were vinegar and baking soda. After putting both of these things in the glass, it started fizzing. This reaction produced carbon dioxide gas. This chemical reaction of vinegar and baking soda proves the law of conservation of mass as the mass of these things stayed the same even after the chemical reaction. This was a open system as the carbon dioxide was escaping from the glass.

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The law of conservation of mass is that when you have a chemical reaction that makes the bonds break none of the mass is lost for it always finds a new partner and never just disappears or is left alone.

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A conservation law states that any measurable property of an isolated physical system does not change when the system grows over the time. Conservation laws describe which processes can or can't happen in nature. Energy can't be created nor destroyed. You can only change energy. Which means that we will always have the same amount of energy so any chemical reaction involving energy will stay the same.

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Law of conservation of mass is a chemical reaction. The materials for the reaction are baking soda, vinegar and a beaker. After we mix baking soda with vinegar gasses will form(that's evidence) After the reaction the reactants break their bonds and new bonds form. A new substance is formed, Co2 gas. The reactants of this chemical reaction are C2H4( acetic acid) and NaHCO3(sodium bicarbonate), and the products are H2o(water) NaC2H3O29 (Sodium acetate) and CO2( carbon dioxide).In addiction when the system is open matter can enter and escape from the surroundings but when the system is closed matter does not enter or leave.According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants

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This chemical reaction was really fun. The Law of conservation of mass showed my in this experiment that is is not created nor destroyed. I saw the Law of Conservation of mass because the baking soda and vinegar didn't destroy but it did create a new substance. The  reactants were vinegar and baking soda. The product was that the vinegar and the baking soda started fizzing and making bubbles.  So the products is NaC2H3O2. This experiment wasn't a open  system it was an closed system. It was an closed  system because I did the experiment in a plastic bag and the matter didn't escape.

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A chemical reaction takes place when vinegar and baking soda are mixed. One of the new substances formed is carbon dioxide gas. If the carbon dioxide gas is contained, the mass of the substances will stay the same according to the Law of Conservation of Mass. If the gas is allowed to escape, the mass will be less. The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases, equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

Maro:)

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Nikephoros Gontzes Law of Conservation of Mass

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Nikephoros Gontzes Law of Conservation of Mass

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What do you predict: There will be bubbles/foam forming and rising up.
What happened: Carbon Dioxide was produced in this chemical reaction. The reactants were the Baking soda and Vinegar, while the products were Carbon Dioxide (CO2), Water (H20), and Sodium acetate (NaC2H3O2).
What happened is that with the law of conservation of mass, the molecules were rearranged and formed the CO2. We saw the closed system twice. Firstly, we saw this happen in a video we watched at the start of class. Secondly, we used a zip lock bag as a closed system since it was a closed plastic bag, where the CO2 made the bag full.  In the experiment in class, we used a open system, because we used a opened cup and foam as well as CO2 was created inside of the cup. In this chemical reaction, bonds are broken, but at the same time lots of new bonds are formed.