You have 116.8 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125.0 mL of a 2.50 M solution of AgNO3(aq). Calculate the concentration of Na after the two solutions are mixed together.

Different isotopes indicate that an element will have different numbers of

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

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.