FUOYE CHM 101 CBT PRACTICE TEST EXAM MODE

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

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

3. The energy of motion is

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

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

6. Which of the following supports Boyles law

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

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

9. 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

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

11.

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

12. The binding energy is defined as

13. Radiation is detected by its ___________ properties

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

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

16. 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?

17. A saturated solution is defined as

18. What is the Mass number of Na?

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

20.

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

21. Molarity is defined as ______

22. 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?

23. The Element that best describes Alpha decay is?

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

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

26. Water is an example of

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

28. Elements in a periodic group have similar

29. Which group reacts violently with water?

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

31.

The effect of ionizing radiation depend on

32. 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

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

34.

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?

35.

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

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

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

38.

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

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

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

41.

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

42. A zeroth order reaction is one whose

43. The factor 0.001 corresponds to which prefix

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

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

Mg =24.31

N= 14.01

O= 16

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

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

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

49. Gamma radiation can be described as

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