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ва
An element is a non-metal, is highly reactive, and is a gas at room temperature.
Which element has these properties?
O A argon (Ar)
O B. barlum (Ba)
OC carbon (C)
OD. fluorine (F)
O E tungsten (W)
RESET
Paige Lohnson

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.