How many effusion steps are needed to purify a gas mixture of 70% hydrogen sulfide/30%
ammonia to 99% hydrogen sulfide?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, kcos3(s). write the balanced equation. how many moles of oxygen are produced from 12 moles of potassium chlorate