Why is physical exercise often suggested if you experience an abundance of stress?

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Calculate the number of moles of ethane in 100 grams

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5