1309.0551181 feet are contained in .399 km
They are all <u>non-metal elements</u>.
Mass of Iron (Fe): 55.845Mass of Bromine (Br): 79.904
You need to multiply the mass of Br by 3 because there are 3 Bromine atoms.
(79.904)(3)+ 55.845= 239.712+55.845 = 295.557 g/mol
Answer:
B as all the forces cancel out
Explanation:
20-20=0
25-25=0
