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Meaning of rubidium oxide | Babel Free

Noun CEFR B2

Definitions

any oxide of rubidium, but especially the yellow solid Rb₂O; it is a strong base, reacting strongly with water to form the hydroxide and with acids to form normal salts

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

rubidium-strontium rubidus Rubies rubification rubigo rubijervine

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