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.
h) A way to make hard water softer is to put an sodium nitrate and create a precipitate to mellow out the reaction. Another way of making it softer is by removing the calcium ions one way of doing that is by boiling the solution to take out some of the ions. Conclusion: Overall, we determined that sodium carbonate, Na2CO3, is the anion that can be used to precipitate the most metal cations. Also, we learned that the anion sodium chloride, NaCl, could be used to remove silver ions from solutions. The stuff that I found interesting was that how many colours you can get when you mix the cations and anions
The evidence of sea floor spreading was further supported by Vine and Drummond, who studied the magnetic pattern of the sea floor. They found that the Earth’s magnetic field changes over time, because as magma from the mantle rises to the crust it cools but the basalt will align to the field it cools to. It is also found that on either side of mid oceanic ridges there were symmetrical magnetic patterns, so suggesting that the ocean was created at the mid oceanic ridges and as new ocean floor cooled, it pushed the crust away. Both Hess and Vine and Drummond found evidence that is crucial to the explanation of how continental drift happened, and it is very important in the development of geologists understanding, however other people found evidence to support continental drift also. Dan McKenzie went on to further explain sea floor spreading, being able to explain why new crust was made at mid oceanic ridges.
Course # Student name / Names of members of group Date: Exp # : Estimating the effects of acid rain Introduction: Precipitation that measures a pH value below 5.6 is generally considered as acid rain. Burning fossil fuels is the main reason for the elevated levels of gaseous oxides in a polluted atmosphere that in-turn forms acid rain. Gaseous oxides such as that of carbon, sulfur, nitrogen and phosphorus could dissolve in water to form an acidic solution. A generalized reaction sequence on the formation of acid rain is as follows; One of the determinants of clean water in the natural environment is its alkalinity. Alkalinity can be defined as the capacity to neutralize acids.
According to Science Buddies in the article Measuring Surface Tension of Water with a Penny, water “molecules at the surface experience a net force pulling them inward” (2007). For instance, if you filled a cup with water to the very top, adding a few more drops of water will make the glass overfill without spilling any actual water because the water molecules are being pulled inward. While water has a unique, high surface tension, other liquids, like olive oil, do not. The cause of low surface tension in olive oil is due to “Van Der Waal” forces. While hydrogen bonds have a uniquely high surface tension, van der Waals forces have a relatively weak attraction, which causes low surface tension.
When I was doing my research, most of the stuff I found was negative. I only found one site that was tellings the positive side on fracking. The outcome of fracking, which is natural gases, are seen to be better for the environment because the gases burn cleaner. But all of the work done to get these natural gases is harmful. There are 40,000 gallons of chemicals used per fracking.
Vegetable oil is hydrophobic and there for is not water soluble but alcohol on the other hand is completely soluble with vegetable oil. 3. We know from observing the vegetable oil and water together that the relative density of water is greater then the density of vegetable oil because the oil will always recede to the surface of water. 4. Emulsification agents allow for two unbendable liquids to be combined, the detergent hold properties that both substances can in return blend with leaving detergent dissolving in both the water as well as the alcohol unlike other substances we tried to
From this information, the percentage of salt verses water ions can be determined Ions are also produced in the liquid or solid state when salts interact with solvents (for example, water) to produce "solvated ions," which are more stable, for reasons involving a combination of energy and entropy changes as the ions move away from each other to interact with the liquid. These stabilized species are more commonly found in the environment at low temperatures. A common example is the ions present in seawater, which are derived from the dissolved salts. Procedure Obtain 250 mL beaker Weigh dry 250 mL beaker and record weight. Add 10mL of unknown salt and water solution.
It is Cleanthes who articulates the Argument from Design. THE ANTHROPIC ARGUMENT- Some examples of how the Anthropic Principle affects the livability of our planet include: -THE UNIQUE PROPERTIES OF WATER- Every known life form depends on water. Thankfully, unlike every other substance known to man, water’s solid form (ICE) is less dense than its liquid form. This causes ice to float. If ice did not float, our planet would experience runaway freezing.
The round piece of zinc is not displacing its weight in water for it not to sink. A ship in the other hand is far heavier and has the ability to displace a heavier amount of water than it weights. The slope of equation will be very close to the density of lead which is 11.3g/ml. Graphing the densities shows me how much more denser than iodine the difference in the char the line for lead is much more higher than the iodine line. The amount of water displacement is much more with lead the zinc.