About Water

A cathode is a type electrode where electrons move. Water is then condensed hydrogen gas and hydroxide ion. The hydrogen is then taken out of the equation so that the hydroxide bonds with the sodium. Sodium carbonate also known as washing soda is a white solid and has the chemical formula of Na2CO3. The molar mass of sodium carbonate is 105.9888 g/mol.

Mercury was first distinguished as an element by the French chemist Antoine Laurent Lavoisier in his experiment on the composition of air. At room temperature mercury is a shining, moving liquid that has a silvery-white color, and slightly volatile. Mercury remains a liquid over a wide temperature range. Mercury is a solid when given a pressure of 7640 atmospheres (5.8 million torrs). It dissolves in nitric or concentrated sulfuric acid but is resistant to alkalies.

Its melting point is about 39˚c. its atomic number, with a density of 1533 kg.m. Potassium K with an atomic number of 19, also occurring as a solid at room temperature is so reactive that it will even react and burn a hole through ice Ceicium The wil... ... middle of paper ... ...readily combine with other ligands to form stable complexes. These elements are all unstable and very reactive due to atomic numbers above 83. Thorium and Uranium are the only actinides which occur naturally in the earth's crust.T Thorium With atomic number of 90, Th has a melting temperature of 1750˚C and a density of 11725 kg/m ᵌ.

Chlorine combines with metals and nonmetals and organic materials to form hundreds of chlorine compounds. Chlorine is about 2.5 times as dense as air and moderately soluble in water, forming a pale yellowish green solution. Chlorine is so reactive that it never occurs free in nature. Chemical Properties Chlorine is in the halogen family, and like all the other halogen elements chlorine has a strong tendency to gain one electron and become a chloride ion. Chlorine readily reacts with metals to form chlorides, most of which are soluble in water.

Sea ice is frozen sea water. Salt ions in the water complicate the growth of ice crystals, and makes sea ice much more dynamic than freshwater ice. Sea ice covers nearly 7% of the Earth's surface, has a huge effect on global climate, and is one of the largest, single biomes on Earth. Ice is the solid, crystalline form of water, which solidifies at 0ºC. Roughly 9 polymorphs of ice are defined, only one, however, occurs naturally on Earth.

Usually snow that falls in those places is almost pure water, but it still contains traces of dust, and pollutants from human activities. This information can be used to detect major environmental changes in the circulation of the atmosphere. The second type of information obtained from ice cores comes from bubbles in the glacier ice. These bubbles are formed as snow becomes compressed and the air between the flakes gets trapped. The third type of information obtained from ice cores comes from the frozen water itself.

Lab: Triple Point of Dry Ice Introduction When a substance undergoes a triple point change, then it goes through all three of the states of matter: solid, liquid, as well as gas. When all three matters exist at the same time, it is extremely rare and an interesting sight to experience. A triple point is defined, specifically, as “ the temperature and pressure at which the solid, liquid, and vapor phases of a pure substance can coexist in equilibrium” (1). An excellent example of a substance that has the ability to obtain a triple point would be dry ice. Dry ice is solid CO2.

Introduction Ionic liquids is a broaden term covering several possible systems. Ionic liquids are liquids that consist of exclusively ions, which exhibit ionic conductivity. The traditional definition known is molten salts or fused salt, which tend to have high melting points. For a while now the generalized definition of ionic liquids has only limited itself to the specific definition, which have melting points or has glass transition temperatures of 100 degrees. There are also the room temperature ionic liquids.

1.1 Definition Ionic liquids are normally regarded as organic salts which is in melted state below 373K. They are basically classified as Protic or aprotic ionic liquids. Protic Ionic liquids (PILs) are formed by proton transfer from a Bronsted acid, AH, to Bronsted base B. 〖B+AH=HB〗^++A^- CH_3 CH_2 NH_2+HNO_3→CH_3 CH_2 NH_3^++NO_3^- 1.2 Introduction An ionic liquids (IL) are those salts which are in the liquid state. They are those salts whose melting point is below some arbitrary temperature, such as 100 °C (212 °F).

Evaporation is the process in which a liquid turns to a vapor without its temperature reaching boiling point. The rate of evaporation rises if the liquid is warmed up. The temperature of a liquid decreases as it evaporates because the evaporating molecules remove energy from the liquid. ¨Water is the most ordinary substance on Earth. It covers 70 percent of the world’s surface.