Chemistry, 17.06.2020 21:57 PerfectMagZ
Two gases and are found in the atmosphere in only trace amounts because they decompose quickly. When exposed to ultraviolet light the half-life of is , while that of is. Suppose an atmospheric scientist studying these decompositions fills a transparent flask with and and exposes the flask to UV light. Initially, the partial pressure of is greater than the partial pressure of Y. Will the partial pressure of X ever fall below the partial pressure of Y? If yes, calculate the time it take the partial pressure of X to fall below the partial pressure of Y.
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Chemistry, 22.06.2019 17:30
Consider the story you just read. all but one of the choices below indicate that something is living.
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Chemistry, 23.06.2019 05:30
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
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