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Do molecules stop moving when equilibrium is reached?

Chemical equilibrium is reached when the forward reaction occurs at the same rate as the reverse reaction in a system. This means that while there is no overall change in concentration of products and reactants, reactions are still taking place.\nThe same concept applies to thermal equilibrium. Molecules flow from hotter substances to cooler substances. When the two substances reach the same temperature, molecules are still transferred between the two, but at equal rates back and forth.

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What is the wrist bone called?

The wrist bone connects the fingers to the arm. The wrist connects to the bones of the arm, the radius and ulna. The top of the wrist bone is connected to five long, thin metacarpal bones. These bones connect to the finger bones. The most common injury sustained to the wrist bone is to the scaphoid bone. This bone is located near the thumb bone.

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How do you make a tornado model?

First, fill the jar three-quarters full of water. Next, add in 1 teaspoon of vinegar and 1 teaspoon of clear liquid dish soap. Then, add a pinch of glitter. Lastly, close the lid and twist the jar to swirl the contents. A vortex like the swirling winds of a tornado forms in the center of the jar. Due to the water's friction against the glass wall, when the jar is being twisted, the water inside against the glass is pulled along while the fluid on the inside takes longer to move. Eventually, both the glass jar and the contents spin as you rotate the jar. However, when you stop rotating th..

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What does the nautical star stand for?

In a nautical almanac, the first point of Aries is given in reference to 57 other stars. As a tattoo symbol, the nautical star has many meanings. Informally, it may indicate membership in the U.S. Navy or Marine Corps. The alternating shading is borrowed from the compass rose of traditional nautical charts. If the tattoo is on the wrist, it is believed to be a positive guide for the future.

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Why would heating the gas in an air balloon make the balloon rise?

A hot air balloon consists of three main parts: the envelope, the burner and the basket. The burner, which is usually fueled by liquid propane, is located below the envelope; it is responsible for heating the air in the envelope. The basket holds the pilot, the passengers and the propane tanks.\nTo move the balloon upwards, the pilot firsts opens the propane valve to release the liquid propane into the envelope. The mixture of propane and natural air ignites under the envelope, heating the air in the envelope. The balloon then starts rising. The pilot must keep reheating the air for the balloo..

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What are the top ten most terrifying natural disasters in history?

In evaluating domestic property destruction and human loss, Popular Mechanics lists the top U.S. natural disasters after 1900. These tragic events include: the San Francisco Earthquake Fire of 1906, Big Burn of 1910, Spanish Flu Pandemic of 1918, Great Tri-State Tornado of 1925, New England Hurricane of 1938, Great Alaskan Earthquake of 1964, Super Tornado Outbreak of 1974, Mount St. Helen's Eruption of 1980, Storm of the Century in 1993 and Hurricane Katrina in 2005.\nIn its list of the worst natural disasters, Live Science includes the Indian Ocean tsunami and earthquake of 2004 and the..

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What is the lumbar and thoracic spine?

The thoracic region consists of 12 vertebrae, increasing in size as it descends the body. The vertebrae have abbreviated names between T1 and T12, and are typically larger than the cervical bones above the thoracic region. The rib bones attach to the thoracic vertebrae, creating a protective system for the vital organs of the abdomen.\nThe lumbar region, made up of five vertebrae, are designated L1 through L5. As with the thoracic region, the lumbar vertebrae are larger than their precedents, designed to carry the majority of the body's weight. The lumbar spine is more flexible than the t..

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How do you access free Tesla coil plans?

The Tesla coil is among the most well-known inventions of Nikola Tesla. A Tesla coil is capable of converting the output of a lower voltage transformer to a much higher voltage. Kevin Wilson's Tesla coil instructions result in the construction of a classic Tesla coil with a power source, primary and secondary coils, capacitors and a spark gap. The Tesla Universe site, on the other hand, eliminates the dangerous spark gap component of the Tesla coil and uses smaller, lighter transformers. However, even the safer, solid-state coil poses a risk to individuals with heart problems and is a fir..

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How are minerals classified?

The Dana system of classification was devised by Professor James Dana of Yale University in 1848. His system classified minerals according to their chemical composition. For example, a halide has Cl (chlorine), Br (bromine), F (fluorine) or I (iodine) at the end of its chemical formula.\nA new Dana system of classification contains 78 different classes of minerals based on composition and then further classified by type and group. To be considered a mineral, a substance must be an inorganic, naturally formed solid, with a specific chemical formula and a fixed internal structure. To test whethe..

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Which element comprises most of Earth's atmosphere?

Nitrogen is extremely stable in the atmosphere, where solar radiation and other natural phenomena react with other gases to create chemical reactions that affect the entire planet. Due to nitrogen's stability, it has accumulated in the atmosphere in great amounts over time. Despite nitrogen's abundance in the atmosphere, oxygen overall is around 10,000 times more common throughout Earth. Oxygen is a primary component of the Earth's surface, along with other elements, such as silicon, magnesium, sodium and calcium.

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