activated by a string pulling taught on the back of a water bottle causing water to flow out onto a series of gears. The gears would then turn and flip a switch‚ completing a circuit‚ and turning on a small fan. This fan would then blow loose baking soda into vinegar and the two would react and expand. The expanded chemicals would then push a marble that would roll down a series of slides and into a cup on one side of a pulley. Finally‚ the weight of the marble would cause the pulley string to pull up
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prevention and treatment. The impact of this research will allow us to better educate our society as 37% of kids in the United States‚ between the age of 11 and 13‚ suffer from enamel erosion. Hypothesis If egg shells are soaked in tea‚ coffee‚ soda and fruit juice ‚ then coke should cause more stain damage because it has the most sugar.
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The baking soda is still at the bottom Na2CO3 + CH3COOH No reaction; washing soda will sink Reaction; release gas (bubbles) because of washing soda MgSO4 + CH3COOH No reaction; the liquid will remain clear No reaction; the combined solution was clear MgSO4 + NH3 No reaction; liquid will remain clear Reaction; liquid is
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indigestion caused by excess stomach acid. For instance‚ antacids such as alka-seltzers contain baking soda which is highly reactive with acids‚ settling the discomfort of indigestion. During the lab we used vinegar and various antacids to test what was most effective and why. The brands consisted of name brand and generic‚each type being ground up with a mortar and pestle and then placed them into the vinegar and
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Change in Mass (g) Part 1 155.82 152.90 - 2.92 Part 2 62.82 56.06 - 6.76 Analysis and Interpretation 1. Organizing conclusions. Describe all evidence indications that a chemical change occurred in this experiment 1. When the vinegar was added to the baking soda‚ the reaction let out a smell and it started bubbling and gas came out. The reaction also rose‚ and changed its color 2. Evaluating Conclusions. Was the law of conservation of mass really violated in Part 1 as it appeared? Explain
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of the most important gases in our planet’s carbon dioxide. PROBLEM It is possible that the presence of gas off the fire? HYPOTHESIS There are different gases that can turn off the fire. MATERIAL 1. 1 Bottle of any carbonated beverage‚ unopened. 2. Matches. Baking soda (bought at the pharmacy). 3. 1 stomach effervescent antacid tablet (Sonrisal‚Alka-Seltzer‚ etc.).. 4. 1 bottle of mineral water‚ closed. INFORMATION The presence of a gas that extinguishes fire (carbon dioxide)‚ analyzing various sources of
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reactions give off heat‚ for example‚ fireworks. Endothermic reactions absorb heat; heating water on a stove thus the water turns into gas. Prediction/Hypothesis: If water is combined with ice or salt then it absorbs energy. If white vinegar is combined with baking soda or steel wool‚ then it gives off energy. If hydrogen peroxide is combined with dry yeast‚ then it absorbs energy.
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together. Glue is very important‚ not only to students but also to other people. Glue is often used for projects‚ or generally in our daily lives. The purpose of “manglue” is to use extracts of mango as an alternative ingredient to the vinegar ingredient of glue. The vinegar ingredient of the glue that makes the odd will be replaced with an extract from a mango‚ so that the scent of the glue will be pleasant‚ will have a touch of a different color and will be cheaper than the commercial glue. Problem:
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Chocolate Chip Cookies: A highly scientific chemical reaction of butter‚ sugar‚ eggs‚ vanilla‚ flour‚ baking soda‚ salt‚ and‚ of course‚ chocolate chips. The buttery‚ toffee notes of a perfect CCC is often considered the epitome of home baking‚ a simple yet reminiscing experience‚ taking many down a trip on memory lane. However‚ the classic chocolate chip recipe isn’t as “cookie cutter” as the back of the Nestle Morsel bag has you believe; there is actually a plethora of chemical reactions that take
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The name of the alka seltzer project is named “The Dropouts.” The significance of that name is that the owners of the machine are very close to dropping out school themselves. Ultimately‚ the goal of the machine would be to pop a balloon and to blow out a candle. The goal would be achieved by using the potential energy in the balloon‚ popping it‚ and using the now present kinetic energy‚ which is the air‚ to blow out the flame of the candle. The final products would be a popped balloon and a blown
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