Memory phrase for the character: 钙

钙

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calcium (chemistry, Ca)

gài

Left: metal 钅, right: beggar, alms 丐 (His actions are correct 正, but like with a hook 亅 he gets people's money: The beggar.)

(An alkaline earth metal, but not silvery). The metal for poor people/beggars, is the calcium.

金	gold, metal	This radical is always on the left side of a character.
正	correct	Radical 103 疋 stands for clothing or bales of cloth. In the Hanzi-Trainer, it is used synonymously with the correct 正, because it seems helpful for the explanations and the interpretation clothing/cloth bale would be in conflict with other radicals.

碳酸钙	tàn suān gài	calcium carbonate
氧化钙	yǎng huà gài	calcium oxide
氢氧化钙	qīng yǎng huà gài	calcium hydroxide Ca(OH)2; slaked lime
氢氧化钙	qīng yǎng huà gài

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