The answers are in the picture. this us the question, An increase in carbon dioxide production has led to an increase in global
temperatures, which is causing glaciers to melt faster. If this trend continues, how will animals living in the polar regions be affected?
2 answers:
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pH=4.625
The classification of this sample of saliva : acid
<h3>Further explanation</h3>The water equilibrium constant (Kw) is the product of concentration
the ions:
Kw = [H₃O⁺] [OH⁻]
Kw value at 25° C = 10⁻¹⁴
It is known [OH-] = 4.22 x 10⁻¹⁰ M
then the concentration of H₃O⁺:
pH=-log[H₃O⁺]
Saliva⇒acid(pH<7)