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Why might we suspect that a black hole in a binary system could emit X-rays
Hydrogen Ions
Positively charged atoms of hydrogen, which contribute to acidity when present in high concentrations in solutions.
Acids
Substances that release hydrogen ions (H+) when dissolved in water, typically having a sour taste and capable of turning blue litmus paper red.
Bases
Chemical substances that can accept hydrogen ions (H+) and are characterized by a pH greater than 7 when dissolved in water.
Hydrophilic
Describing molecules or substances that have a natural affinity for water and can dissolve in or absorb water easily.
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