Is k2 legal in rhode island still?

No, K2 (also known as Red X Dawn, Smoke, Buzz, Genie, Blaze, Pot-pourri, K3, K9, and Spice) is currently illegal in not only Rhode Island, but the rest of the United States as well.

On March 1, 2011, the DEA placed a 1 year temporary nationwide ban on the substance; this restricted the manufacture, purchase and use of any synthetic cannabinoids in the U.S.

In March of 2012 the DEA's ban was extended for another 6 months, and this ban is currently still in effect.

K2's main ingredients, JWH-018, and JWH-073, were created by Dr. John Huffman at Clemson University in 1995 while studying the effects of cannabinoids on the brains of mice; no medical benefits were discovered.