What volume of 12.0 M HCl solution needs to be diluted to produce 500.0 mL of 3.00 M HCl solution

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

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Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.