Which of the following are types of matter? A. (1) elements only B. (2) compounds only C. (3) mixtures only D. (4) all of these

5. how can you decrease the pressure of a gas in a container without changing the volume of the gas?

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

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