There are 9 polyatomic ions so which one and the compound “Sn(NO2)2 is Tin(ll) Nitrite
KE=.5mv^2
M=mass
v=velocity
.5(4)(100)=200
That should be the answer.
the poly atomic molecule is H2
Answer:
mass of U-235 = 15.9 g (3 sig. figures)
Explanation:
1 atom can produce -------------------------> 3.20 x 10^-11 J energy
x atoms can produce ----------------------> 1.30 x 10^12 J energy
x = 1.30 x 10^12 / 3.20 x 10^-11
x = 4.06 x 10^22 atoms
1 mol ----------------------> 6.023 x 10^23 atoms
y mol ----------------------> 4.06 x 10^22 atoms
y = 0.0675 moles
mass of U-235 = 0.0675 x 235 = 15.8625
mass of U-235 = 15.9 g (3 sig. figures)
8798076 atoms are in a 0.3500 mol of gold
