Mass is lost when I has under gone this transformation so no, mass was not conserved.
I think your answer should be 2.8 g
Answer: There is a couple different ways to determine if a bond is ionic or covalent.
Explanation:
By definition, an ionic bond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals Hope this helped !!!
It will spread out making the sound travel faster then it usually does in the air(i think) let me know if you need help with anything else
