Question 1: H2(g) is produced by reacting Mg(s) with HCl(aq)
Question 2: The temperature of H2(g) is measured by placing the thermometer in the water bath
Question 3: In the gas constant experiment, H2(g) was collected in a burette
Question 4: Heat of solution of NaOH should have a negative value
Question 5: Neutralization reaction is an exothermic reaction
Question 6: In exothermic reaction, temperature increases and heat energy decreases
Question 7: What does anion mean?
a) Negatively charged atom
b) Neutral atom
c) Atom with no charge
d) Positively charged atom
Question 8: When a solution of Cl- ion is mixed with a solution of AgNO3 (in acidic environment), what is the observation?
b) White ppt
c) White smoke
d) No observation
Question 9: You have a solution of an unknown anion, you added 10 drops of this solution to a test tube. Then, you added 2 drops of HNO3 and 2 drops of AgNO3. You observed white ppt. What is the anion in the solution?
a) Carbonate ion
b) Nitrate ion
c) Sulfate ion
d) Chloride ion
Question 10: The insoluble compound (the white ppt) resulted from testing for SO4-2 ion is -------------------------
True True True True True True... View the full answer