Answer: 2= baby being developed= embryo 1 i dont know sorry
Explanation:
First, find moles of gold given the mass of the sample:
(35.9g Au)/(197.0g/mol Au) = 0.182mol Au
Second, multiply moles of Au by Avogrado's number:
(0.182mol)(6.02 x10^23)= 1.10x10^23 atoms Au
Answer:
2CaO + 2CO2 → 2CaCO2 + O2 is right