Name some chemical reactions in which change of state has been happened

How many moles are equivalent to 55.5g of nano3

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.)

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form