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24.08.2019 •
Chemistry
Ais a heterogeneous mixture in which the particles settle to the bottom.
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Ответ:
a suspension
the particles are big enough to settle
a colloid
the particles are too small to ever settle
a solution
homogeneous mixture of two or more substances
Ответ:
Answer is: HCO₃⁻ + H₂S → H₂CO3 + HS⁻.
According to Bronsted-Lowry theory acid are donor of protons and bases are acceptors of protons (the hydrogen cation or H⁺).
The bicarbonate anion (HCO₃⁻) is Bronsted base and it can accept proton and become conjugate acid H₂CO₃.
H₂S (hydrogen sulfide) is Bronsted-Lowry acid because it lost proton.