If you dilute 745 mL of a 5.0 M solution of Mgl, to 3.0 L, determine the new concentration of the solution. Can anyone help me?

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

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?