What's the date that all the planets were lined up in a row

They never REALLY lined up exactly, but they were as close as they could get in  561 BC... the next time will be in 2854

They never really line up perfectly allign

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.