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Why does a soda can explode in a cold car?

The expansion of water molecules as they freeze is a contributing factor, but the actual explosion would not occur without carbon dioxide. Even short freezing times can build up enough carbon dioxide to detonate the can once it is opened. This is why freezing soda or any other carbonated beverage is not recommended.

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How could you distinguish sodium chloride from sodium iodide?

Another way to distinguish sodium chloride from sodium iodide is by adding the salts to concentrated sulfuric acid. Sodium chloride forms a colorless hydrogen chloride gas, while sodium iodide forms hydrogen sulfide gas and a brown triiodide solid. The results of the above reactions may be further confirmed by testing the salts with a starch solution. Sodium iodide reacts with starch to form a dark blue-black precipitate, while sodium chloride does not form this dark precipitate.

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What is an external force applied to an object?

In physics, the system is defined as the portion of the universe under consideration, explains a Western Washington University website. The system can either be a single object or a group of objects, but these objects do not need to be bound together, or even interacting with one another. Everything outside the system constitutes the system's environment and is generally ignored except for its effect on the system. Contrary to external forces, internal forces are forces that originate from within the system itself. From the previous example of the pendulum, if the bob and the cord are con..

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What is typical weather year round in Austin, Texas?

The chilliest month in Austin is January, during which the average high temperature is 62 degrees Fahrenheit and the average low temperature is 41 degrees Fahrenheit. The warmest month of the year is August. This summer month sees an average high temperature of 97 degrees Fahrenheit and an average low of 75 degrees Fahrenheit.\nThough the weather typically stays pretty warm in Austin, temperatures can drop in the right conditions. Austin's record low temperature — which occurred in 1949 — is -2 degrees Fahrenheit. Of course, it can get quite a bit hotter than average in Austin as well..

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Why does my spleen hurt?

The most common treatment for an enlarged spleen is addressing the underlying problem. If there is a bacterial infection, the individual takes antibiotics to kill the bacteria. In some cases, an enlarged spleen does not respond to the medication or causes serious complications and requires surgical removal. The surgeon removes the spleen through a small incision using a laparoscope, according to Mayo Clinic.\nThe spleen is a part of the lymph system of the human body and helps to prevent disease. The enlarged spleen sometimes causes issues other than pain, such as fatigue, excessive bleeding, ..

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What is the UL measurement?

The International System of Units (SI), also known as the metric system, is recognized by countries worldwide as the standard international system of measurement. SI measures liquid volume in liters and uses scales of measurement as multiples of ten. According to the SI system, "UL" represents a measurement of volume where the symbol "U" stands for "micro" (millionth) and "L" stands for "liter."

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Why is the sun an inexhaustible source of energy?

While the sun provides plenty of energy to Earth and its denizens, harnessing that energy can be tricky. Photovoltaic solar panels can convert sunlight to electricity, but as much as 80 percent of the incoming energy may get lost in the conversion process. Other solar energy methods use the sun's heat instead, focusing it to boil water and to use that water to drive a steam turbine.\nThe sun's energy comes from a fusion reaction driven by its internal supply of hydrogen and helium. The matter at the heart of the sun is so dense that its gravitational pull causes atoms to fuse togethe..

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What is a conservative force?

Conservative forces store energy in the form of mechanical energy. Potential and kinetic energy are the two forms of mechanical energy that are conserved. Potential energy is at its maximum when particles are at their maximum height, and kinetic energy is at its maximum when particles are at a height of zero. As particles move and conserve energy under the influence of conservative forces, potential energy is converted into kinetic energy, or vice versa, to conserve the overall amount of mechanical energy.

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What are the two main types of anaerobic respiration?

Alcoholic fermentation converts glucose into ethanol. In alcoholic fermentation, glucose is broken down by glycolysis, and two ATP molecules are released in the process. The pyruvic acid molecules produced during glycolysis break down into ethanol and carbon dioxide. In animals, the process of lactic acid fermentation, similarly, occurs after the glycolysis process. Pyruvic acid is changed into lactic acid, and muscle tissue is broken down by lactic acid. Lactic acid fermentation is the reason that muscles burn during an intense or long workout. Lactic acid breakdown of muscles results in musc..

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How fast do rocket ships go?

Rockets need to produce tremendous thrust in order to overcome both gravity and the resistance of the Earth's atmosphere. According to Northwestern University, the amount of thrust needed to lift huge amounts of fuel into space can greatly limit the velocity of a rocket during launch. Once in space, satellites and other spacecraft require less thrust to accelerate and are able to achieve far greater speeds.

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