Help please!! * Describe in words the chemical reaction represented by the symbol equation: H2(g) + O2(g) ⟶
⟶H2O (l)

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

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?

How many moles of kci are produced from 2.50 moles k