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

3.

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?

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

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

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

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

Mg =24.31

N= 14.01

O= 16

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

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

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

11. Radiation is detected by its ___________ properties

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

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

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

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

16. 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?

17. 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

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

19. 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

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

21. Molarity is defined as ______

22. Water is an example of

23.

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

24. What is the Mass number of Na?

25. The binding energy is defined as

26. Which group reacts violently with water?

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

28. A saturated solution is defined as

29. A zeroth order reaction is one whose

30. The factor 0.001 corresponds to which prefix

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

32. The energy of motion is

33. Elements in a periodic group have similar

34.

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

35. Gamma radiation can be described as

36.

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

37.

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

38.

The effect of ionizing radiation depend on

39. Which of the following supports Boyles law

40.

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

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

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

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

44. The Element that best describes Alpha decay is?

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

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

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

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

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

50. 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?