Calculate the number of mole of 5O2:
1.2 x 5/4=1.5 mol
Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy unless it's added from the outside.
Explanation:
the answer is <em>a} physical and chemical changes</em>
Lt will be 29
http://www.chemicalelements.com/elements/cu.html
here is the link to cheek
good luck .