Limestone

Science / Geology / Limestone: A sedimentary rock consisting of at least 50% calcium carbonate (CaCO2) by weight. Picture of Limestone.

Calcium (Ca)

Science / Periodic Table of Elements / Calcium (Ca): Atomic number: 20, Atomic mass: 40.08 g.mol -1, Electronegativity: 1.0, Mass volume: 1.6 g.cm-3 at 20°C, Melting point: 840 °C, Boiling point: 1484 °C, Vanderwaals radius: 0.197 nm, Ionic radius: 0 MORE

Oxygen

Science / Chemistry / Oxygen: Element 8, atomic weight 15.9994, a colorless, odorless gas that makes up about 1/5 of the earth's atmosphere and (in combined form) 8/9ths of earth's oceans and almost half of the earth's crust. The MORE

Carbon

Science / Chemistry / Carbon: An element with atomic number 6. Carbon is a nonmetal found in all organic compounds. Carbon occurs naturally as diamond, graphite, and buckminsterfullerene. MORE

Carbon (C)

Science / Periodic Table of Elements / Carbon (C): Atomic number: 6, Atomic mass: 12.011 g.mol -1, Electronegativity: 2.5, Density: 2.2 g.cm-3 at 20°C, Melting point: 3652 °C, Boiling point: 4827 °C, Vanderwaals radius: 0.091 nm, Ionic radius: 0.26 MORE

Oxygen (O)

Science / Periodic Table of Elements / Oxygen (O): Atomic number: 8, Atomic mass: 15.999 g.mol -1, Electronegativity: 3.5, Density: 1.429 kg/m3 at 20°C, Melting point: -219 °C, Boiling point: -183 °C, Vanderwaals radius: 0.074 nm, Ionic radius: 0.1 MORE

Tempranillo

Life Style / Wine Grapes / Tempranillo: Fine winegrape used in best quality red wines of Spain and Portugal. Also known under the synonym names of Cencibel in La Mancha and as Ull de Llebre in Catalonia. Has over thirty synonym names listed MORE

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