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1. Describe the type of bond represented by the dash for each of the following
compounds such as polar covalent, nonpolar covalent or ionic. Consider only the
atoms to which the dash is directly connected.
.
.
.
H-H Covalent bond
H-CH3
H-NH2
Na-ONa
Na-Br
.
.
.
K-OH
.
H-OH
.
H-Br
F-CH3
2. Draw the electron-dot formulas for the following compounds or ions and

answer; talc and gypsum;

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).

i wish i could but this one is weird give me abc and i can solve it.