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In terms of disorder and energy, systems in nature have a tendency to undergo changes toward
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
Which formula can represent hydrogen ions in an aqueous solution?
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
Which functional group contains a nitrogen atom and an oxygen atom?
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
When a sample of Mg(s) reacts completely with O2(g), the Mg(s) loses 5.0 moles of electrons. How many moles of electrons are gained by the O2(g)?
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
A 0.050 M aqueous solution of which compound is the best conductor of electric current?
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
Which statement describes the reactions in an electrochemical cell?
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
The only two elements in alkenes and alkynes are
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
What is the color of bromcresol green indicator in a solution with a pH value of 2.0?
H3O+(aq)
yellow
carbon and hydrogen
greater disorder and lower energy
Oxidation occurs at the anode, and reduction occurs at the cathode.
K2SO4
5.0 mol
amide
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