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20.01.2021 •
Chemistry
Bromine has two naturally occurring isotopes. Bromine-81 has a mass of 80.916 amu and an abundance of 49.31%. Bromine-79 has a mass of 78.920. What is the abundance of Bromine-79
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Ответ:
The equation 3/x + 1/3 = 5/6 where x ≠ 0 has a solution x = 6
Step-by-step explanation:
∵3/x + 1/3 = 5/6
∴ 3/x = 5/6 - 1/3
∴ 3/x = 5/6 - 2/6 = 3/6 = 1/2
∴ 3/x = 1/2 ⇒ using cross multiplication
∴ x × 1 = 2 × 3
∴ x = 6
This equation has a solution under the condition x ≠ 0