5. A solid mass of 20 g is mixed with 30 g of solution in an open container with a mass of 50 g. When the two are mixed, they fizz. The mass of the entire system is taken after the experiment is completed and found to be 95 g. Does this obey the law of conservation of mass? Why or why not? How would you explain what happened?

Aconductor easily transfer heat

Sorry i dont understand the question can you rephase it?

First up write the aim
then write the materials reqd.
then the procedure which you follow
then observation
then conclusion
then you can write lab safety rules or precautions(you can avoid if u want).
lemme' give an example
aim: to observe the double displacement reaction
materials reqd: bacl2 and na2so4, test tubes and a dropper
procedure:
1. take bacl2 in a test tube and na2so4 in the other.
2. then pour bacl2 into na2so4 solution.
3. observe
observation:
you will see that a white precipitate is formed called baso4. along with that common salt or nacl is formed.
the equation is
bacl2+na2so4=baso4+2nacl
conclusion:
a double displacement reaction is observed.
hope it

Ithink the correct answer is 3