Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, kclo3(s). the equation for the reaction is
2kclo3 > 2kcl+3o2
calculate how many grams of o2(g) can be produced from heating 72.0 grams of kclo3(s).

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.)

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?