If there are 27 grams of nitrogen dioxide at STP how many liters does this occupy?

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample?