dustinquiz255
27.01.2022 •
Chemistry
A nuclear bomb explodes and releases Barium-140. The half life of Barium-140 is 12.8 days. A test is performed to see how much 140Ba remains 25.6 days later and it is found that there is 15 g of 140Ba remaining.
a. How many half lives is this?
b. What % would remain?
c. How many g of Barium-140 was initially present when the bomb exploded?
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Ответ:
D.
Explanation:
In a Galvanic cell:
1) Spontaneous reactions take place
2) Chemical Energy is converted to some useful electrical energy