Answer:
the answer is 102- i took did it on edg
Explanation:
Answer:
4
Explanation:
It should be 4
The mass is 9
There are 5 neutrons
There are 9 - 5 = 4 protons
So it is the 4th element on the periodic table.
Ok, so... 20.219 grams is the mass of the flask with the water in it.
10.267 grams is the mass of only the flask. Subtract them to find the water mass.
20.219 g (flask+water) - 10.267 g (flask) = 9.952 g (water)
