Anyone please help, urgent

Why does a cake rise when you bake it? ♡

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.)

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion