Goodbye privacy, hello 'Alexa': Amazon Echo, the home robot who hears it all. We had Rory Carroll invite âAlexaâ aka the Echo into his home. There was helpful cooking assistance, endless facts and figures, an amusing misunderstanding â and concerns over what exactly Amazon does with all that interaction data. Rory Carroll in Los Angeles.
Aqua regia or Royal water can dissolve metals. It is a mixture of conc.nitric acid and conc.hcl in the ratio of 1:3. Remember none of the above mentioned acids will dissolve the metals in the absence of other. adhi Â· 9 years ago.
Removing the rust requires a product that provides enough abrasion to dislodge the rust without tarnishing or harming the metal. With the appropriate products and procedures, it's not difficult to remove rust from a metal bird bath.Difficulty:EasyInstructions Things You'll Need.oisture, salt and acid react with the iron in metal to cause rust. If the rust is left alone, the metal will eventually corrode and crumble. CLR -- a calcium, lime and rust remover -- can dissolve. TAGS: Clean Rust From Metal With.