Answer:
Coefficient
Explanation:
I am not that sure, but just wanted to help.
Answer is: a) in the presence of a base.
Phenolphthalein is colorless in acidic solutions and pink in basic solutions.
Acid-base indicators are usually weak acids or bases and they are chemical detectors for hydrogen or hydronium cations.
Example for acid-base indicator is phenolphthalein (molecular formula C₂₀H₁₄O₄).
When solution turns phenolphthalein pink, it means it is basic (pH>7).
The answer is a strike-slip. More specifically a right-lateral strike-slip.
Hey there,
Smelting's main use is to produce a base metal from its ore
Hope this helps :))
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