Which shows an isomer of the molecule below?

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

What is the most stable monatomic ion formed from nitrogen

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.)