Determine whether each statement is an example of a physical change or a chemical change. -Paper is shredded
-An egg is fried
-wood is burned
-Dry Ice (Solid Carbon Dioxide) vaporizes to from Carbon Dioxide
-Newspaper Yellows in the sun
-Wax Melts On A hot Stove

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

The identities of substances are the same before and after which type of change

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury