Ghostbuster Slime Lab 10/4/2012 Abstract The purpose of this experiment was to observe the physical properties and changes of the creation of a polymer as a result from cross-linking. A borax solution was made and was combined with a polyvinyl alcohol solution. A polymer’s cross-links give them many properties, like bonding ability, elasticity, and viscosity. The amount of water added in the experiment directly affected the viscosity and elasticity of the slime polymer. Too much water added resulted in a high viscosity and low elasticity.
(See figure 1.1.) Figure 1.1 3) Use the masking tape to keep the cone closed. At the closed end of the cone (the bottom), use extra masking tape to cushion the blow from the fall AND weight the bottom. This will insure that the cone falls bottom side first. 4) Next, we will construct a box that is a little larger than the egg with the remaining poster board.
This is the reason why with resistance, syringe A will not move as the particles in water are as tightly compressed together as they can get. 2. What did you notice when you used tubing of different lengths between he syringes? I noticed that when the tubing was longer, it was harder to push one syringe towards the other. Greater force was needed.
Leave the magnet in the plastic bag. 13. Use the magnet and stir for one minute. 14. Tap the magnet gently on the side of the beaker to dislodge the wood shavings.
A) is neutralized by water B) is surrounded by water molecules C) reacts and forms a covalent bond to water D) aggregates with other molecules or ions to form a micelle in water Answer: B Page Ref: Section 3 11 9) Which would you expect to be most soluble in water? A) I B) II C) III D) IV Answer: A Page Ref: Section 3 10) Solutes diffuse more slowly in cytoplasm than in water because of A) the higher viscosity of water. B) the higher heat of vaporization of water. C) the presence of many crowded molecules in the cytoplasm. D) the absence of charged molecules inside cells.
If the sample was to re-colloid, it would easily wash right through the filter, causing the analytical results to be low. Once the precipitate is dried, the silver and chlorine can be separated by simply being in the presence of light, illustrated in the below equation: AgCl(s) → Ag(s) + 1/2Cl2(g) This decomposition happens quite quickly in strong light; however, it mostly occurs on the surface of the precipitate because its opaqueness protects all the material below the surface. If there are excess silver ions during the decomposition, another reaction may occur: 3Cl2(g) + 3H2O(l) + 5Ag+(aq) → 5AgCl(s) + ClO3-(aq) + 6H+(aq) In this reaction, some of the chloride
Now the consumer has all the materials he or she will need to make a peanut butter and jelly sandwich. Now that the consumer has all the material it’s time to make the sandwich. The first step in making the sandwich is untwisting the cap on the peanut butter. Once the consumer has untwisted the cap, then you pick the knife up by the side that is not sharp. Put the knife inside the peanut butter and stir/scoop the knife until he or she has the amount of peanut butter desired.
As a result, wood is soaked in very strong alkalis such as caustic soda to produce a pulp consisting of cellulose and lignified cellulose fibres in water. Thin layers of pulp are then pressed onto frames where they dry to form paper. Many traditional methods of producing fibres such as flax, often used for ropes, simply relied on the natural actions of decomposers to break down the material around the fibres, known as retting. In developed countries manufacturing processes have replaced natural retting, using chemicals and enzymes to quicken the process. It is most likely that the best and most widely used of the natural fibres is cotton.
The pyruvate is garter oxidized to yield more ATP What happens to the pyruvate under anaerobic conditions? The pyruvate is converted into lactic acid Diffusion After viewing the animation, answer these questions. Molecules dissolved in a solution are in constant random motion due to their kinetic energy . One result of this motion is that dissolved molecules become evenly distributed throughout the solution . This tendency of molecules to spread out is an example of __diffusion .
The substance dissolves in water but not in alcohol, is transparent when dissolved in water, is electrically conductive when dissolved in water, dries white, and has a high melting point. Out of the four compounds we received to test, according to the data we collected, sodium carbonate was the one that would work the best as a fixative for the glaze. In the experiment we conducted you will notice that the independent variables were the different compounds, while the dependent variables were the results to the criteria that had to be met. Also, during our research, we found that sodium chloride and sodium carbonate worked better than sucrose and salicylic acid because they have ionic bonds. These conditions are more suitable for ionic bonds.