276966
This salt , and the analogous alkali metal salts of the form M2PdCl4 , may be prepared simply by reacting palladium ( II ) chloride with the appropriate alkali metal chloride in aqueous solution .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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