A cell containing a standard Sn2+/Sn electrode and a standard Ag+/Ag electrode is constructed, and the circuit is closed. Potassium nitrate is used as a salt bridge. Without consulting the table of standard reduction potentials, diagram and completely describe the cell from the following experimental observations: i. the mass of the silver electrode decreases ii. the mass of the tin electrode increases Be sure to include the following: a. Label the anode and cathode b. Label the electrodes and the solutions c. Indicate the direction of electron flow d. Label the salt bridge and show the direction of anion/cation movement e. Write the half-reactions that occur at the anode and cathode f. Write the complete balanced equation for this reaction

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

there is none because earth is stationary and flat.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.