The typical reactions of dilute acids include them being able to react with
- NaHCO3
- Mg
- Cu
The following reaction occurs between concentrated sulfuric and nitric acids.
H2SO4 + HNO3 ⇋ H2NO3+ + HSO4-
Identify the two species which are acting as Brønsted–Lowry bases.
What role does each species play in the equilibrium below according to Brønsted-Lowry theory?
CH3COOH + HCl ⇌ CH3COOH2+ + Cl-
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CH3COOH
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HCl
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CH3COOH2+
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Cl-
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A
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acid
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base
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base
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acid
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B
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acid
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base
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acid
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base
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C
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base
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acid
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base
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acid
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D
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base
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acid
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acid
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base
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Perbromic acid, HBrO4 , is an example of a strong acid when dissolved in water. What is true about perbromic acid?
HBrO4 is largely found as molecules in the solution
HBrO4 solution reacts only with strong bases
HBrO4 is fully dissociated in solution
HBrO4 has a pH greater than 7
Potassium hydrogenphosphate has the formula K2HPO4 . What is the conjugate base of this compound?
For the equilibrium equation shown, which species are Brønsted-Lowry acids?
H3NSO3 (aq) + 2NH3 (aq) ⇌ HNSO32- (aq) + 2NH4+ (aq)
Which would be formed when calcium oxide reacts with hydrochloric acid ?
Calcium chloride and carbon dioxide
Calcium chloride, hydrogen gas and water
Calcium, hydrogen gas and water
Calcium chloride and water
What is the sum of the coefficients when the following acid-base equation is balanced?
_HNO3 (aq) + _Mg(HCO3)2 (s) → _Mg(NO3)2 (aq) + _H2O (l) + _CO2 (g)
Which oxides react with calcium oxide?
- SO2
- NO2
- K2O
Which row correctly describes the reaction specified?
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Reaction
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Energy change
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A
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metal displacement
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endothermic
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B
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neutralisation
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exothermic
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C
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combustion
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endothermic
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D
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melting ice
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exothermic
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