4. Water can act as either an acid or a base. Which equation represents water reacting as an acid? A. H2O ) + HCI (aq) → H3O+ + Cl-rag) B. H2O a → H2g) + ½O29) C. H2Om + C(s) - COlg) + H2(g) D. H2Og + NH3(g) → OH-(ag) + NH4+ (ag)

Chemistry for Today: General, Organic, and Biochemistry
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Chapter9: Acids, Bases, And Salts
Section: Chapter Questions
Problem 9.32E: Classify the solutions represented in Exercises 9.28 and 9.30 as acidic, basic, or neutral.
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4.
Water can act as either an acid or a base. Which equation represents water
reacting as an acid?
A. H2O ) + HCI (aq) → H3O+ + Cl-rag)
B. H2O → H2(g) + ½O2g)
C. H2O@ + C(s) - COlg) + H2(g)
D. H2Om + NH3(g) → OH-(aq) + NH4+ (ag)
Transcribed Image Text:4. Water can act as either an acid or a base. Which equation represents water reacting as an acid? A. H2O ) + HCI (aq) → H3O+ + Cl-rag) B. H2O → H2(g) + ½O2g) C. H2O@ + C(s) - COlg) + H2(g) D. H2Om + NH3(g) → OH-(aq) + NH4+ (ag)
Acids and bases are important in living things because most enzymes can do
their job only at a certain level of acidity. Cells secrete acids and bases to maintain
the proper pH for enzymes to work. For example, every time you digest food, acids
and bases are at work in your digestive system. Can you cite other examples where
acids base reaction works in you.
Transcribed Image Text:Acids and bases are important in living things because most enzymes can do their job only at a certain level of acidity. Cells secrete acids and bases to maintain the proper pH for enzymes to work. For example, every time you digest food, acids and bases are at work in your digestive system. Can you cite other examples where acids base reaction works in you.
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