Mixing salt with water is an example of a change. *
physical change
chemical change

How many grams of n2h4 will be consumed by 23 g of n2o4

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it