The answer is the reaction ins a cold pack
Answer:
1, 1, 2, 3
Explanation:
The numbers 1 and 8 both have 1 sig. fig.
The number 13 has 2 sig. figs.
The number 104 has 3 sig. figs.
Matter buddy, ur welcome :)
It is in period 3
It is in group 17
It is a chlorine atom because it has 17 electrons which means the atomic number is 17
