Problem Which dissolves in water better, salt or baking soda? Hypothesis If salt and baking soda where put in water then baking soda will dissolve better than salt. Abstract The purpose of this project is to determine which material dissolves better in water between salt and baking soda. The hypothesis is If salt and baking soda where put in water then baking soda will dissolve better than salt. One teaspoon of salt and one teaspoon of baking soda were put in two separate transparent glasses of water and then the time of dissolving of each substance were calculated.
It is well known that atomic detonations on or above a sandy desert will melt the silicon in the sand and turn the surface of the Earth into a sheet of glass. But if sheets of ancient desert glass can be found in various parts of the world, does it mean that atomic wars were fought in the ancient past or,
These types of lava are very viscous due to its high silica content. This is because the lava rises from the subduction zone through continental lithosphere which has a low density and is filled with air spaces containing gases which become incorporated into the lava. This very viscous lava often blocks off vents of volcanoes and when the pressure building up in the vent is eventually released, the top of the volcano can be blown off leaving a huge crater, such as in the 2002 eruption of Mount Etna in Sicily. When the two plates involved are oceanic, explosions tend to be less violent than this as the melted lithosphere which forms the lava is denser and so contains fewer gases. At constructive boundaries where plates are moving apart from one another, basaltic lava is erupted between the gaps.
It is the viscosity of magma that largely determines the nature and power of an eruption and the resultant severity of the hazard. Basic magma has a high proportion of dissolved gases and low silica content, making it very fluid. On the other hand, acidic magma is very rich in silica and has a relatively lower temperature, making it very thick and slow moving. The more viscous the magma, the greater the potential for explosive eruptions and these represent the greatest potential hazards. Non-explosive eruptions tend to produce mostly lava flows, which do not represent a particularly serious hazard to people, however they will destroy farmland and buildings.
They are both very soluble in alcohol and hexane so that doesn’t help, but in water ethyl ether is semi soluble and pentane is in soluble. This would make us lean toward pentane but we felt strongly that ethyl ether because of the density was a much better test because there is much less human error and the we asked about how do you decide if something is insoluble
Manganese dioxide is an inorganic molecule that can achieve this. The catalyst lowers the activation energy of the decomposition which is already noticeable without the addition of a catalyst. In our lab we observed that the Manganse dioxide had no effect on the reaction, however it should have a significant
This Cascade Range of volcanoes extends from Canada's Mount Garibaldi to Lassen Peak in northern California. One of these volcanoes, Mount Mazama, is now the home of Crater Lake. Crater Lake fills a 1,200-meter deep caldera, which is a depression that was formed by the collapse of Mount Mazama during the violent eruption, about 7,700 years ago. What types of rocks are present in the park?
They grow by piling up lava and ash into cones with steep-sided slopes, which are prone to collapse as massive landslides known as debris avalanches. The 1980 debris avalanche at Mount St. Helens literally opened a new chapter in the study of volcanic hazards. Debris avalanches were an under-appreciated hazard prior to 1980. More than 200 prehistoric debris avalanche deposits around the world were recognized because of observations of processes and resulting geologic features at Mount St. Helens. For example, the origin of puzzling, hilly volcanic deposits near Mount Shasta and Mount Rainier became clear.
d) The reactions are complete when the bubbles stop forming. e) Zinc, Hydrogen, Copper Challenge What is the chemistry-based reason for this peculiar construction of a penny? Zinc is too reactive to for the coin to be totally made out of zinc. The copper is not as reactive and is a protective
If there wasn’t enough solution to react with it then that would explain why we still had some left over that didn’t. For the zinc, the handbook says that it is insoluble in water but soluble in acid. Likewise we observed the same thing, the zinc did not dissolve at all in the water but became somewhat soluble in hydrochloric acid. The Zinc began to fizz but in the end not all of it was dissolved although there was significantly less than we started