1. By Carl Lyman © September 2001
Jeopardy Template
By Carl Lyman
© September 2001

2. Midterm Jeopardy 1
Tools
Matter
Atomic
Naming
100
200
300
400
500

3. Credits
That’s all folks.
Exit

4. Tools $100
A.) 40.3 mL
B.) 43 mL
C.) 43.0 mL
D.) mL

5. Tools $100
C mL
Scale is 1 mL and the measurement rule states that you must estimate one digit beyond the scale

6. Write in scientific notation:
Tools $200
Write in scientific notation:
36,400
A.) 36.4 x 104
B.) 3.64 x 104
C.) 36.4 x 103
D.) 3.64 x 10-4

7. Tools $200
B x 104
Number in front must be between1 and 10. Decimal is moved 4 places and the exponent is positive because the original number is greater than 1.

8. How many significant figures are in the measurement 0.0034 kg?
Tools $300
How many significant figures are in the measurement kg?
A.) 1
B.) 2
C.) 4
D.) 5

9. Tools $300
B 2
Decimal point absent so come from pacific side. Start counting at the first non zero
0.0034 →

10. Tools $400
Express the sum of 7.68 m m using the correct number of significant digits.
A.) m
B.) 12.7 m
C.) 13 m
D.) 10 m

11. Tools $400
B m
When adding and subtracting you look at the decimal position. The number should be expressed to the tenth position. It is rounded to 12.7 because of the 8 in the hundredth position for 12.68

12. Tools $500
Express the product of 2.2 mm x 5.00 mm using the correct number of significant digits.
A.) 10 mm
B.) 11 mm
C.) 11.0 mm
D.) mm

13. Tools $500
B 11
When multiplying or dividing you look at significant digits. Your answer should include 2 significant digits

14. Which of the following is a physical change?
Matter $100
Which of the following is a physical change?
A.) corrosion
B.) explosion
C.) evaporation
D.) rotting of food

15. Matter $100
C Evaporation
Phase changes are physical changes. The composition of the material is not changed, just the distance between the particles

16. What is one difference between a mixture and a compound?
Matter $200
What is one difference between a mixture and a compound?
A.) A compound consists of more than one phase.
B.) A compound can only be separated into its components by chemical means.
C.) A mixture can only be separated into its components by chemical means.
D.) A mixture must be uniform in composition.

17. Matter $200 B A compound can only be separated into its
components by chemical means.
Compounds consist of two or more elements chemically combined in a fixed ratio and thus can only be separated by chemical means. A mixture is a blend of two substances not chemically combined and can be separated by physical means

18. Which of the following is a heterogeneous mixture?
Matter $300
Which of the following is a heterogeneous mixture?
A.) air
B.) salt water
C.) steel
D.) soil

19. Matter $300
D Soil
Heterogeneous mixtures contain identifiably different components. It does not look of uniform composition

20. D.) Heterogeneous Mixture
Matter $400
Which of the following cannot be broken down by chemical or physical means?
A.) Element
B.) Compound
C.) Homogenous Mixture
D.) Heterogeneous Mixture

21. Matter $400
A Element
Elements are made of only one type of atom and cannot be separated by chemical means, compounds can. Mixtures can be broken down by physical means

22. Which of these elements is not diatomic as a free element?
Matter $500
Which of these elements is not diatomic as a free element?
A.) nitrogen
B.) hydrogen
C.) boron
D.) chlorine

23. Matter $500
C Boron
The 7 diatomic elements are:
HONClBrIF

24. Atomic $100
In Rutherford's gold foil experiments, some alpha particles were deflected from their original paths but most passed through the foil with no deflection. Which statement about gold atoms is supported by these experimental observations?
A.) Gold atoms consist mostly of empty space
B.) Gold atoms are similar to alpha particles
C.) Alpha particles and gold nuclei have opposite charges
D.) Alpha particles are more dense than gold atoms

25. Atomic $100 A Gold atoms consist mostly of empty space
Most particles passed through because they did not hit anything

26. Atomic $200
The region labeled "Y" in the diagram has a charge that is:
A.) positive
B.) negative
C.) neutral

27. Atomic $200
A Positive
Y is the nucleus that contains positive protons and neutral neutrons. X is the negatively charged electron cloud

28. Atomic $300 Most of the mass of the atom can be found in the:
A.) charges
B.) electron cloud
C.) electrons
D.) nucleus

29. Atomic $300
D Nucleus
The nucleus contains protons and neutrons, both with masses of 1 amu. The electron has a mass of 1/1836, so the electron cloud has very little mass in its large volume.

30. Atomic $400 Which atoms are isotopes of the same element? D.) d C.) c
A.) a
B.) b

31. Atomic $400 1
Isotopes have the same number of protons (bottom left), but a different number of neutrons (found by subtracting the protons from the mass number in upper left). Both have 12 protons, but one isotope has 12 neutrons and the other one has 13.

32. Atomic $500 How many electrons are contained in an Au+3 ion? A.) 76
B.) 79
C.) 82
D.) 197
Also determine the number of protons and neutrons

33. Atomic $500 A 76 Protons are equal to the atomic number: 79
Neutrons are mass (197) – protons (79): 118
Negative electrons are equal to positive protons in a neutral atom. This atom has a charge of +3, three too little electrons. 79 – 3 = 76

34. What is the formula for triphosphorus pentasulfide?
Naming $100
What is the formula for triphosphorus pentasulfide?
A.) P5S3
B.) P6S3
C.) P3S5
D.) S4P5
E.) PS3

35. Naming $100
C P3S5
Prefixes tell you how many atoms are present. Tri- is 3 and Penta- is 5. The number is placed as a subscript to the right of the element symbol

36. What is the formula for barium hydroxide?
Naming $200
What is the formula for barium hydroxide?
A.) BaOH
B.) BaOH2
C.) Ba(OH)2
D.) Ba(OH)

37. Naming $200
C Ba(OH)2
You must assign charges: Ba = +2 and OH = -1. The charges are crisscrossed: one Ba and 2 OH. Parentheses are needed because there are 2 OH’s (2 O’s and 2 H’s).

38. What is the name of the compound Li2CO3?
Naming $300
What is the name of the compound Li2CO3?
A.) dilithium carbonate
B.) dilithium hydrogen carbonate
C.) lithium(I) carbonate
D.) lithium carbonite
E.) lithium carbonate

39. Naming $300 E lithium carbonate
Compounds with 3 or more elements contain a polyatomic ion. It is not a binary compound with 2 nonmetals so prefixes are not used.

40. What is the formula for tin(IV) chromate?
Naming $400
What is the formula for tin(IV) chromate?
A.) Sn(CrO4)4
B.) Sn2(CrO4)2
C.) Sn2(CrO4)4
D.) Sn(CrO4)2

41. Naming $400
D Sn(CrO4)2
The roman numeral represents the charge on the metal. Assign charges Sn = 4 and CrO4 = -2. Crisscross the charges: two Sn and 4 CrO4. Subscripts must be reduced to lowest whole number ratio. 2:4 becomes 1:2.

42. Naming $500 Name the compound CuCO3. A.) copper carbonate
B.) copper (I) carbonate
C.) copper(II) carbonate
D.) copper(III) carbonate

43. Naming $500 C copper (II) carbonate
Compounds with 3 or more elements contain a polyatomic ion. Copper is a transitions metal and needs a roman numeral to describe its charge. It is +2 because the one copper needs to cancel out the -2 charge on the one carbonate