Multiple Choice
In which reaction does the oxidation number of oxygen increase?
A) 2 SO2 (g) + O2 (g) -2 SO3 (g)
B) HCl (aq) + NaOH (aq) -NaCl (aq) + H2O (l)
C) Ba(NO3) 2 (aq) + K2SO4 (aq) -BaSO4 (s) + 2 KNO3 (aq)
D) 2 H2O (l) -2 H2 (g) + O2 (g)
E) MgO (s) + H2O (l) -Mg(OH) 2 (s)
Correct Answer:
Verified
Correct Answer:
Verified
Q135: What volume (mL) of a concentrated solution
Q136: With which of the following will ammonium
Q137: A stock solution of HNO<sub>3</sub><sub> </sub>is prepared
Q138: Which of the following is soluble in
Q139: Zinc is more active than cobalt and
Q141: How many grams of H<sub>3</sub>PO<sub>4</sub><sub> </sub>are in
Q142: A tenfold dilution of a sample solution
Q143: The total concentration of ions in a
Q144: The reaction between strontium hydroxide and chloric
Q145: What are the respective concentrations (M) of