Specific heat is the heat required to raise the temperature of 1 g of a substance by 1 oC. Based on this definition, what is the equation to calculate specific heat

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?