If vinegar is added to baking soda, the reaction cu (s) + 2ag(no3) (aq) à 2ag (s) + cu(no3)2 (aq) occurs. what evidence would indicate that the reaction is occurring?

a. a precipitate is formed

b. light and heat are given off

c. a new odor is given off

d. the solution bubbles

answer: c

explanation:

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.