Question

the composition of Aqua region is first part of ___ and third part of___​

Answer 1

Answer:

Aqua regia, mixture of concentrated nitric and hydrochloric acids, usually one part of the former to three parts of the latter by volume. This mixture was given its name (literally, “royal water”) by the alchemists because of its ability to dissolve gold and other so-called noble metals.

Answer 2

Answer:

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Explanation:

concentrated nitric and acid

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