I am pretty sure it’s five and six
I am pretty sure it’s not three and four
I don’t know about one and two
Hope this helps
C. the expansion of the universe is accelerating
Answer:
Explanation:
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In this case, since the molarity of a solution is calculated by diving the moles of solute by the volume of solution in liters, we first compute the moles of barium hydroxide in 35.5 g as shown below:
Then, the liters of solution:
Finally, the molarity turns out:
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Then it would become: S2-
Its charge will be -2.