dissolva

Dissolva is the grammatical form of the Portuguese verb dissolver, used for the action of causing a substance to become incorporated into a solvent. In standard grammar it corresponds to the third-person singular present subjunctive of dissolver and, in formal contexts, the imperative form for você/ele/ela. The same spelling also appears as the present subjunctive for both the formal imperative and for subordinate clauses introduced by que.

Etymology and forms: The verb dissolver derives from Latin dissolvo, dissolvere, meaning to loosen or dissolve. In European and Brazilian Portuguese, the form dissolva serves as the present-subjunctive form: que ele/ela dissolva or que você dissolva. When used as a direct command in formal address, dissolva functions as an imperative: Dissolva o sólido na água. This dual role is typical for subjunctive forms that express wishes, necessities, or commands in formal speech.

Usage and examples: Dissolva appears in instructions, scientific writing, and formal requests. Examples include: Dissolva o sal na água e mexa até dissolver completamente. É necessário que a solução se dissolva antes de proceder. In many contexts, it conveys politeness or formality, particularly in procedures or guidelines directed at a reader addressed as você.

See also: dissolver, solubilidade, dissolução. Note that dissolva is a verb form, not a noun, and its appropriate use depends on mood (subjunctive) or politeness level (imperative) in Portuguese.