Friction that occurs in gases and liquids is called
friction
NEED ASAP

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Explanation for basic character?

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?