IM TAKING A QUIZ PLEASE HELP ME Sodium sulfate is produced in the reaction between sulfuric acid and an excess of sodium chloride. Hydrochloric acid is also produced. How many moles of sodium chloride are used to produce 7.09 grams of sodium sulfate? H2SO4 + NaClaq Na2SO4(aq) + HCl(aq)

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

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