Answer:
I believe it is A
Explanation:
pH = -log[H+] and pOH = -log[OH−].
Hydrogen (H) was first, followed by helium (He).
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Answer:
Economic value can be described as a measure of the benefit from a good or service to an economic agent. It is typically measured in units of currency. Another interpretation is that economic value represents the maximum amount of money an agent is willing and able to pay for a good or service.
Explanation:
