No because observing a physical property of a substance is just observing like color or texture. They don't change. Physical properties do not change the composition of a substance and neither do physical changes.
Answer: 693 g HNO3
Explanation: solution:
11.0 moles HNO3 x 63 g HNO3 / 1 mole HNO3
= 693 g HNO3
Total mass of water = 2 +16 = <u>18g</u>
As mass needs to be conserved
Atoms form chemical bonds to make their outer electron shells more stable. ... An ionic bond, where one atom essentially donates an electron to another, forms when one atom becomes stable by losing its outer electrons and the other atoms become stable (usually by filling its valence shell) by gaining the electrons.
