Cola Explosion When the Mentos come into contact with the Diet Coke‚ a reaction causes the rapid formation of foam. it is concluded that the potassium benzoate‚ aspartame‚ and CO2 gas contained in the Diet Coke‚ in combination with the gelatin and gum arabic ingredients of the Mentos‚ all contribute to the formation of the foam. The structure of the Mentos is the most significant cause of the eruption due to nucleation.MythBusters reported that when fruit-flavored Mentos with a smooth waxy coating
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Average Density (kg/m^3) 2 9551 6046.24 3 5305.16 4 3282.57 Castrol oil results: Density of the liquid Castrol was found by dividing its mass over its volume at temperature of 26℃ as follows: Density= (mass of the liquid)/(Volume of the liquid used) Density of liquid= mass/volume= (24.5g )/(25 ml)= 0.98 g⁄ml =980 kg/m^3 The three balls were dropped into the liquid containing Castrol oil at a known distance of 0.252 m and the following data were recorded: Castor oil Travelling
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teaching chemical density‚ people often allude to a substance’s tendency to sink or float. This is technically incorrect. A much better analogy is whether a substance mixes with another substance or not. In the case of the lava lamps three different liquids are used – water‚ vegetable oil and food coloring. Oil is less dense than water so it does not mix with the water. Food coloring is denser than water‚ so it drops through the oil and settles in the water mixing with it. The chemical reaction is a
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(milk) and gas (food coloring) in the respiratory system. Because I know milk is non-polar and food coloring is polar‚ my hypothesis predicts the two will not mix voluntarily at first‚ but the soap acting as a surfactant‚ when added‚ will help the two liquids mix together. Materials (Part on: water surface tension) 1- A penny 2- A dropper 3- Water 4- Paper towels (Part two: surfactant) 1- Milk 2- 2 different color food coloring 3- Dishwashing soap 4- Cotton swab 5- A mall clear dish 6- Timer 7-
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many peritectics? ______ How many peritectoids? ______ How many pure metal phase transitions? ______ How many congruent melting points??______ Q.2 a) A 90 wt% Ag-10 wt% Cu alloy is heated to a temperature within the b + liquid phase region. If the Composition of the liquid phase is 85 wt% Ag‚ determine: (a) The temperature of the alloy (b) The composition of the b phase (c) The mass fractions of both phases b) For a copper-silver alloy of composition 25 wt% Ag-75 wt% Cu and at 775°C (1425°F)
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was calculated to be 45.76g. The error of the carried out experiment was calculated to be 20.06%. Introduction: A substance requires energy to change from one phase state to another‚ or in other words‚ when it goes from either a solid to liquid or liquid to gas. The potential energy that is stored between molecules of the substance needs to be overcome by the kinetic energy of the motion of the particles before the substance can undergo the phase change. The temperature of a substance as heat
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In the novel Catalyst by Laurie Halse Anderson‚ there are three main sections‚ Solid‚ Liquid‚ and Gas. The main character‚ Kate‚ is very interested in science and the three titles are a metaphor for her state of mind throughout the book. The first section‚ Solid‚ shows how Kate is a stable and strong person. The next section‚ Liquid‚ is a time where Kate’s life is very inconsistent and she is unsure about herself. The last section‚ Gas‚ shows how Kate has accepted her fate and tries to help everyone
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0 C and some molecules at 100 C for a brief period of time. This explains why wet stuff at room temperature (25 C) can dry out: over time‚ some of the molecules reach a temperature sufficient to "break free" from the liquid‚ becoming a gas. This isn’t limited to liquids either! Even ice in your fridge will lose molecules‚ leading to the puzzling "shrinking ice cube" effect and the ever popular "freezer burn" where $10 sirloin steaks are reduced to dried out slabs of meat. Now‚ I’ll answer
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from the stove. Strain the mixture through a strainer. Discard the skins and put the liquid in a clean container. 5)Cover the container and keep it in the refrigerator. For our lye 1. Get the ingredients and equipments ready: You would need the following things to try your hand at making lye: two plastic buckets (a small one and a large one ? The small one should fit into the large one in such a way that liquid from the small one drips slowly into the large one); some fresh ash from burning hard
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Preparation and melting point of Aspirin Aspirin is a painkilling drug and is produced worldwide to reduce and stop pain. Aspirin is made up of ehtanoylation of 2-hydroxbenzenecarboxylic acid in a presence of phosphoric acid. AIM: The aim of the experiment is to prepare and produce aspirin as pure as possible. I will do this threw preparing the aspirin and purifying the product threw recrystallization. I will then obtain a melting point of my product to get an estimate of its purity. By the end
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