If you determined that the volume of a silver bar is 100.ml, how many atoms of silver would be in the bar? the density of silver is 10.5g/ml. 271

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

The biosphere of the earth is made up of what compound? organic or inorganic?

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?