Which characteristics are used to classify stars on the hertzsprung-russell diagram? check all that apply. size density composition temperature absolute brightness

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он

What volume would 2.25 moles of ne has occupy at stp?

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?