Select the correct answer. which is a chemical change? a. water boiling b. wood burning c. glass breaking d. ice melting e. molding iron

What are fructose and glucose an example of?

Can someone me with 1 to 4 plz. fast

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?