To fill the valence shell, an electrically neutral, unbonded atom with atomic number 8 must add to fill the valence shell, an electrically neutral, unbonded atom with atomic number 8 must add 2 electrons. 3 electrons. 8 electrons. 1 electron. can't tell without knowing which element it is.

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

Why is the melting of ice a physical change ?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.