Post-lab Assignment Complete and then balance the following reaction equations in molecular, total ionic, and net ionic formats. Use the proper state designators: (aq) for aqueous solutions, (g) for gases, (l) for liquids, and (s) for solids. Use the Solubility Rules to predict the states of the products. If you expect no reaction to occur, write NR in place of products. sodium chloride potassium nitrate (NaCl KNO3) Molecular Format: Total Ionic Format: Net Ionic Format: sodium chloride silver nitrate (NaCl AgNO3) Molecular Format: Total Ionic Format: Net Ionic Format: sodium carbonate hydrochloric acid (Na2CO3 HCl) Molecular Format: Total Ionic Format: Net Ionic Format: sodium hydroxide hydrochloric acid (NaOH HCl) Molecular Format: Total Ionic Format: Net Ionic Format: barium chloride sulfuric acid (BaCl2 H2SO4) Molecular Format: Total Ionic Format: Net Ionic Format:

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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the atomic mass is the bottom number on the element.

-steel jelly

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).