When HCl reacts with water, the hydrogen ions react with the hydroxide ions to form water: Hâº + OHâ» â HâO. Thus, the reaction between HCl and Mg(OH)â is then: 2HCl(aq) + Mg(OH)â(s) â MgClâ(aq) + 2HâO(l) The products are magnesium chloride and water. Using ions, the reaction is: 2Hâº(aq) + 2Clâ»(aq) + Mg(OH)â(s) â 2HâO(l) + MgÂ²âº(aq) + 2Clâ»(aq) We can cancel Clâ» from each side of the equation.
Nature of Data. The term data is broadly defined as a recorded observation of sensory input; thus data are empirical, that is events perceived by the senses.The following terms refer to distinctions that are commonly made with regard to data: 1  qualitative vs. quantitative. 2  discrete vs. continuous.ature of Data. The term data is broadly defined as a recorded observation of sensory input; thus data are empirical, that is events perceived by the senses.
In sociology primary data is data you have collected yourself and secondary data is data you have gathered from primary sources to create new research. In terms of historical research, these two terms have different meanings.A primary source is a book or set of archival records.econdary data has already been collected by and readily available  from other sources. It is cheaper and easier to obtain than primary  data. It helps provide an understand â¦ ing of the problem and allows  for comparison of the primary data collected.