Iced Tea Collision Theory

In reference to the collision theory, molecules act as small spheres that collide and bounce off each other, transferring energy among themselves when the collide. In order for a reaction to occur, there must be collisions between molecules. Through experimentation, factors are discovered that influence the reaction rates of chemical reactions include the concentration of reactants, temperature, surface area, the physical state of reactants, and a catalyst. This experiment regarding the factors that affect reaction rate tests the effects of increased concentration and

The temperature decrease results in alterations of the autonomic sympathetic response[11] and in impaired conduction velocity of the electrical signals through the

Introduction: I conducted this experiment to see whether sugar would cause the ice cube to melt faster. There were two different types of ice cubes; just pure water, and water that contained sugar. Liquid water contains molecules that are disordered and jumbled, but when it is frozen, the molecules become ordered and regular.

For our hypothesis we thought that the seltzer would dissolve the alka seltzer the fastest, because the seltzer was already carbonated. After doing the experiment we found out that the seltzer was the 2nd fastest at dissolving the tablet, and the water dissolved the alka seltzer 6 seconds faster than the seltzer. This being said our hypothesis turned out to be wrong because the water (fastest to dissolve the alka seltzer) has fewer chemicals, so it dissolved the tablet faster. We thought the less chemicals the slower the alka seltzer would dissolve. Although after conducting the experiment we found through data that the more chemicals in the liquid, the slower the tablet would dissolve in them.

Introduction: The rate of a reaction is the speed at which a chemical reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate. Some reactions take hundreds, maybe even thousands, of years while others can happen in less than one second. (Chem for Kids, 2016). Reactions require collisions between reactant molecules or atoms. The formation of bonds requires atoms to come close to one another. New bonds can form only if the atoms are close enough together to share electron. Higher temperatures make the collisions between molecules more violent. The higher temperatures mean higher velocities. This means there will be less time between collisions. The frequency of collisions will increase. (Chem, 1999) H2O2 is the chemical formula for hydrogen peroxide. The decomposition of hydrogen peroxide will break down into oxygen and water.

Introduction: The purpose of this lab is to see how fast an Alka-Seltzer tablet dissolves in water when the surface area increases. Problem Statement: How does surface area influence the Alka-Seltzer tablet on how fast it can dissolve in water? Hypothesis: If the surface area increases then the time it takes to dissolve will decrease. Investigation Diagram (ID)

Introduction :You will be exploring three scenarios and conducting observations on the physical and chemical changes in matter: The Iced Tea Debate, Salty Soup, and Fire Bug.

In the late sixteenth- century Europe adopted a caffeinated warm drink for the first time this included chocolate, tea and coffee. Tea fills the senses with a bittersweet scent. This herb came from china by ship. Unlike cider and beer tea was new to the English-speaking world (49). Starting in the eighteenth- century Europe trading companies began to market green and black tea (51). Before this time period tea was very rare in the west region of British north America. Only the wealthy could originally afford tea and sugar. Tea was also used as a source of herbal medicine rather than traditional methods. This herb was also expensive because it shipped across great distances and allowed the East India Company to charge higher prices and labor added an extra charge. This resulted in tea becoming a luxury item in the colonies (53). The Townshend’s act in 1767 put a tax on tea which Americans responded that parliament could not tax without their consent. This frustrated the colonist because it put their love for tea at risk, so they responded to parliament by aiming at British merchants and manufactures

The type of sugar affects the rate of cellular respiration because each sugar is classified as either a monosaccharides, disaccharides or polysaccharides. The data from this experiment was collected by the amount of carbon dioxide produced from the type of sugar that was used. The data was then analyzed using a line graph. Data was also collected in class averages. There were three sugars in this experiment, glucose, lactose, and fructose. An example of a monosaccharides would be glucose and fructose. The slope for glucose should be about 283.07. The slope for fructose should be about 269.77. Second, an example of a disaccharides would be lactose. The slope for a disaccharide in this experiment should be about 67.055. The data shows that

The inability to maintain homeostasis would cause Elaine’s body tissues metabolic rate to decline as well as inhibit the neural transmission and thus limit the control that she has over her body (Giesbrecht and Wilkerson 24). Since Elaine is conscious her bodies response to the cold environment. This allows her to initiate shivering which increases metabolism, ventilation, heart rate, and cardiac output. Thermoregulatory responses also include vasodilatation, sweating, and vasoconstriction (Giesbrecht and Wilkerson & 24). Thanks to these mechanisms her body is able to maintain homeostasis.

Will gummy bear’s soak up more water, milk, or Dr. Pepper In this experiment I think that the gummy bears will soak up more water. Why do I think it will soak up more water ? I think it will soak up water because water contains no sugar. I believe that .Milk is very thick and it will be very hard the gummy bear to soak it up . Dr.Pepper is very acidic and will probably make the gummy bear’s dissolve. .

The scientific, medical explanation about hyperthermia is that thermal regulation centers around the brain help to maintain the internal body temperature by adjusting the amount of salts in perspiration. Electrolytes help the cells in body tissues maintain water balance. In hot weather, a healthy body will lose enough water to cool the body while creating the lowest level of electrolyte imbalance. If the body loses too much salt and fluid, symptoms of dehydration will occur. The healthy human body keeps a steady temperature of 37 degree Celsius, in hot weather, the body perspires. As perspiration evaporates from the skin, the body is cooled, then the thermal regulating system in the brain helps the body adapt to high temperature.

When an endotherm is subjected to severe cold it is liable to lose heat energy but this can be counteracted in a number of ways;

In salt, there are more particles in 10 grams of sodium chloride (salt) than in 10 grams of sucrose (sugar). When there are more particles, melting will occur faster. When there is one type of molecule, say water, it is easier for the molecules to get in an orderly manner to become solid water, or ice. When other types of molecules are added, the water molecules lose their order and it becomes harder to be frozen. Therefore, when there are more particles of a different type, then the freezing point will become lower.

On the other hand, the lipid bilayer contains many proteins that will only operate if they are free floating on this bilayer. It is only possible for these proteins to float is the lipid bilayer is liquid, and at low temperatures the bilayer may change phase and freeze. These effects can reduce essential cellular functions, which can reduce energy availability. Maintaining a stable body temperature is crucial in environments such as the Coast to Coast, as energy demands are high in order to survive the physical exhaustion