Which of these elements has the greatest atomic number? A.
tin (Sn)

B.
lead (Pb)

C.
boron (B)

D.
sulfur (S)

Which is mostly likely why many scientists reject the cold fusion theory

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 characteristics can be used to differentiate star systems? check all that apply.