FUOYE CHM 101 CBT PRACTICE TEST EXAM MODE

1. Using the method of initial rates for the reaction A➡B, if the initial concentration of A is doubled and the rate of reaction quadruples, what is the order of reaction with respect to A?

2. Which of the following is not an Arrhenius acid?

3. Which cell involves a non-spontaneous redox reaction?

4.

A catalyst increases the rate of reaction by providing a different reaction pathway that

5. What is the identity of the element with 6 protons, 7 Neutrons and 6 electrons

6. What is the mole fraction of ethanol in a solution made by dissolving 25g of ethanol, C2H5OH, in 53.6g of Water

7. Which of the following can be classified as a weak base?

8. Molarity is defined as ______

9. Which cell involves a non-spontaneous redox reaction?

10. Who is the Dean of Faculty of Science in Fuoye

11. Calculate the percentage composition of Nitrogen in Magnesium Nitrate Mg(No3)2

Mg =24.31

N= 14.01

O= 16

12.

What is the expected freezing point of a 0.50m solution of Na2CO3 in water? Kf for water is 1.86°C/m

13. What is the oxidation number of the chromium atom in K2Cr2O4?

14. How many grams of chromium metal are plated out when a constant current of 8.00A is passed through an aqueous solution containing Cr3+ ions for 40 minutes

15. Which of the following supports Boyles law

16. Chlorine belongs to the ____________ group on the periodic table

17. Isotopes have the same number of __________ but different numbers of ___________ in their nuclei

18. Ozone is unstable, decomposing to oxygen, as shown in the balanced equation 2O2 ➡ 3O2. In this reaction, how many grams of oxygen can be formed from the decomposition of 96g of ozone?

19.

An isotope has a half-life of 30 minutes. Given an original sample of 100 g of the isotope, how much will be left after an hour?

20. Which of the following compounds would be soluble in water?

21. How many grams of KNO3 are needed to make 250ML of a solution that is 0.135M

22. What is the Mass number of Na?

23.

Which of the following can be interpreted as a measure of randomness

24. What symbol is used to express the facor,10^-6?

25. How many grams of nickel metal are plated out when a constant current of 15.0A is passed through aqueous NiCl2 for 80.0 minutes

26.

What is the minimum energy barrier that must be overcome for a chemical reaction to occur

27.

During an electrochemical reaction, electrons move through the external circuit toward the __________ and positive ion in the cell move toward the ____________.

28. Which group reacts violently with water?

29. Radiation is detected by its ___________ properties

30. What is the minimum energy barrier that must be overcomed for a chemical reaction to occur

31. Of the following, which element has the highest first ionization energy

32.

The effect of ionizing radiation depend on

33. A zeroth order reaction is one whose

34. What mass of HNO3(63g/mol) is contained in 300ml of 0.30 M HNO3 solution!

35. The factor 0.001 corresponds to which prefix

36. The Element that best describes Alpha decay is?

37. An element that has the valence electronic configuration 3s2 3p3 belongs to which period and group?

38. Water is an example of

39. Which of the following is not used to describe the condition of a gas?

40. What is the oxidation number of the chromium atom in K2Cr2O7

41. Elements with ___________ atomic mass are best possible candidates for a fusion reaction

42. What is the overall reaction order for the reaction that has the rate law: k[H2] [NO] 2

43. Elements in a periodic group have similar

44. Gamma radiation can be described as

45. A saturated solution is defined as

46. The number of nucleons in an atom or ion is the same as the

47. According to history, the concept that all matter is composed of atom was first proposed by

48. The energy of motion is

49. What is the electronic configuration of Potassium (K)?

50. The binding energy is defined as