Based on your knowledge of chemistry, explain what the reactants and the products are of the chemical reaction, why the masses on the scale are the same, and what type of chemical reaction indicator was given to show that a chemical change has taken
place.
Hel

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.