A. Draw the line-bond structural formula for water (H2O), sodium chloride (NaCl), methane (CH4), hydrogen gas (H2), and ammonia (NH3). Then, characterize the type of bond that each molecule contains (ie. ionic, nonpolar covalent, polar covalent).

B.
On the molecules listed in #1, draw the relative position(s) of the shared electrons based on the electronegativity of the atoms.

Which statements are true about electrolysis? check all that apply. electrolysis requires an acid be present. electrolysis is described by two half-reactions. electrolysis is not an industrial process. electrolysis results in commercially valuable products. electrolysis involves the transfer of electrons. reduction results in the loss of electrons. oxidation results in the loss of electrons.

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?