Answer: 684.4g
Explanation:Please see attachment for explanation
The answer is Ba2+ + SO4 2- => BaSO4
Answer:
2.107×10²⁴
Explanation:
no of moles=no of particles/Avogadro's number
3.5=X/6.02×10²³
by cross multiplication
3.5×6.02×10²³
=2.107 ×10²⁴
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Uranium, which is number 92