Answer:
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Explanation:
It depends on the type of reactants carrying out the reaction.
Answer: 173 g ( 0.17 kg in right accuracy)
Explanation: Amount in moles is n = N/Na = 2.0·10^24 / 6.022·10^23 (1/mol).
n = 3.32116 mol. M(Cr) = 52.00 g/mol and mass m = nM = 172.7 g
Tropic levels have most energy
B. carbon because it's atomic number is 6
