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Cleopatra VII  — Research Starter

Cleopatra VII, the last active ruler of the Ptolemaic Kingdom of Egypt, was born into a tumultuous royal family with deep Macedonian roots, tracing lineage back to Alexander the Great's successors.…

Chuck Close  — Research Starter

Chuck Close was an American artist renowned for his large-scale portraits, primarily associated with the photorealism movement, which emphasizes creating paintings that closely resemble photographs.…

Chromium (Cr)  — Research Starter

Chromium (Cr) is a hard, silvery transition metal with the atomic number 24, known for its remarkable corrosion resistance and ability to maintain a mirror-like surface even when exposed to oxygen.…

Chlorophyll  — Research Starter

Chlorophyll is a vital green pigment found in plants and algae, responsible for the process of photosynthesis, which allows these organisms to convert sunlight into energy. This conversion occurs in…

Chivalry  — Research Starter

Chivalry refers to the medieval code of conduct associated primarily with knighthood, emphasizing ideals such as bravery, courtesy, honor, and a duty to protect the weak. It developed during the…

Concentrations in solutions  — Research Starter

Concentrations in solutions refer to the amount of solute dissolved in a given volume of solvent, typically water, which plays a crucial role in a wide variety of chemical reactions, especially in…

Alkaline earths  — Research Starter

Alkaline earths refer to a group of six metallic elements found in group II of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). These…

Alkali metals  — Research Starter

Alkali metals are a group of six highly reactive metallic elements found in Group I of the periodic table, comprising lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium…

Alkali halides  — Research Starter

Alkali halides are ionic compounds formed by the combination of alkali metals, found in the first column of the periodic table, with halogens from the seventh column. This family of compounds includes…