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In the reaction Cu + 2 HBr = CuBr2 + H2, what is the oxidation number of Cu?
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
How many mL of 6 M HCl are needed to make 250 mL of 2 M HCl?
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
In the reaction of CaBr2 and K2CO3, what will be the precipitate?
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
Choose the weak acid.
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
Is HClO a strong electrolyte?
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
Oxidation is the * of electrons and reduction is the * of electrons.
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
What is the molarity if 25 g KI are dissolved in enough water to make 250 mL?
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
In the reaction Cu + 2 HBr = CuBr2 + H2, what is oxidized?
CaCO3
no
HF
Cu
loss, gain
83 mL
0.60 M
0
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