Why is NH3 classified as a polar molecule? * NH3 is a gas at STP.
N -H bonds are nonpolar.
NH3 molecules have asymmetrical charge distributions.
Nitrogen and hydrogen are both nonmetals.

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

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.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false