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WorksheetsDunamis quick test
Total questions: 20
Worksheet time: 9mins
When ammonia donates an electron pair, it will act as a(n) ______________.
Lewis acid
Lewis base
Arrhenius acid
Bronsted-Lowry base
Arrhenius base
An aqueous solution of HI is considered to be a(n) __________, because it __________.
Bronsted-Lowry acid
can donate an H+ ion to another species
Arrhenius base
dissociates in aqueous solutions to produce H+
Arrhenius acid
dissociates in aqueous solutions to produce OH−
Bronsted-Lowry base
can accept an H+ ion from another species
Which of the following represent(s) model(s) for an Arrhenius base?
In the reaction: Fe3+ + 6H2O -> [Fe(H2O)6]3+, classify Fe3+ as Lewis acid or Lewis base.
Lewis acid
Proton
Neutral
Lewis base
Identify the Lewis base in the reaction: BF3 + NH3 -> BF3NH3
NH3
CO2
H2O
BF3
Identify the Lewis acid in the reaction: AlCl3 + Cl- -> AlCl4-
AlCl3
Cl-
AlCl4-
Al2Cl6
Which reactant in the following equation is a Bronsted Lowry acid?
H2O + HCl → H3O+ + Cl-
Water
Hydrogen chloride
Hydronium
Chloride
In the equation below, what is the Bronsted Lowry acid (donates H+)?
HCl + NH3 → Cl- + NH4+
HCl
NH3
Cl-
NH4+
A Bronsted Lowry acid:
donates H+ to another substance
accepts H+ from another substance
produces H+
produces OH-
Which of the following are CHEMICAL properties of acids?
Reacts with metals to form salt and hydrogen gas
Reacts with metal carbonates to form salt, water and carbon dioxide gas.
Reacts with bases to form salt and water only
Tastes sour
A student reacted hydrochloric acid with sodium hydroxide, until the solution was neutral. Next he evaporated, the water from the beaker. She noticed that white crystals remained in the bottom of the beaker. The crystals were most likely…
alkali
acid
water
salt
The color of universal indicator in hydrochloric acid:
Red
Blue
Purple
Green
Reaction between acid and alkali producing salt and water:
Combustion
Neutralization
Precipitation
Decomposition
An Arrehenius acid is a substance that produces which ion when dissolved in water?
OH-1
H2O
K+1
H+1
Which of the following is NOT a property of acids?
turn blue litmus paper red
electrolyte
remains colorless in phenolphthalein
pH greater than 7
reacts with a metal to produce bubbles of hydrogen gas
Which of the following is a hydronium ion?
H+
H2O
OH–
H3O+
Which of the following is a chemical formula of an acid? (Hint: See Reference Table K!)
H2O
NaOH
H3PO4
Ba(OH)2
True or False: Acids are solutions that have the ability to conduct electricity.
True
False
Not sure
