What is "Aqua regiaor"?
a mixture of two acids
water with the addition of a small amount of gold
the mythic substance that the alchemists wanted
hydrated gold oxide
Aqua regiaor ("king's water") is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.
reach: rather globalchemistrylegendsphysics
Answers by country
a mixture of two acids
water with the addition of a small amount of gold
the mythic substance that the alchemists wanted
hydrated gold oxide
answers
Austria
92
the Netherlands
26
Poland
6092
India
646
Germany
532
Switzerland
45
Ghana
25
Pakistan
61
Australia
81
Nepal
12
the United Arab Emirates
13
Canada
36
Nigeria
100
the United Kingdom
190
Malaysia
32
the United States
266
Singapore
14
the Philippines
58
Greece
22
Republic of Ireland
17