1. EOC REVIEW

3. Bromine.

4. 3. Draw the Bohr Diagram for Magnesium.

10. c = speed of light (constant)
λ = wavelength
ν = frequency

11. c = speed of light (constant)
λ = wavelength
ν = frequency
E = energy
h = Planck’s constant

27. Isotopes of an atom could be detected based on which of the following characteristics?
atomic radius
nuclear charge
nuclear mass
number of electrons

28. A substance dissolves well in water but not in benzene
A substance dissolves well in water but not in benzene. Which of the following can be concluded about the substance?
The substance may be either polar or nonpolar.
The substance is nonpolar.
The substance is polar.
The substance is neither polar nor nonpolar.

29. When bonded with sulfur, which element will most likely form an ionic compound?
oxygen
calcium
hydrogen
chlorine

30. A violent reaction occurs when sodium is placed in water
A violent reaction occurs when sodium is placed in water. Which element would produce a similar reaction with water? Mg S K Cr

31. How many moles of sodium carbonate are in 500. mL of a 0
How many moles of sodium carbonate are in 500. mL of a M solution of sodium carbonate?
0.150 mole
0.840 mole
3.18 moles
150. moles

32. When you are done with an experiment, how should you dispose of used chemicals?
Mix all chemicals in a waste container and dump them in the trash.
Pour all chemicals down the sink.
Follow the intructions given to properly dispose of the particular chemical(s).
Mix the chemicals in a flask, and heat the mixture until it evaporates into the air.

33. Which of the following diatomic molecules has a triple bond?

34. A 2L sample of helium gas is heated under constant pressure from 20oC to 60oC. What is the final volume of the sample?
2.27 L
1.76 L
6.00 L
0.67 L

35. The nucleus of an atom emits a particle
The nucleus of an atom emits a particle. The particle is equal in size to a helium nucleus. What is this particle?
an alpha particle
a beta particle
a neutron
a gamma ray

36. Which compound will NOT dissolve in water?
(NH4)2S
FeCO3
Na2S
K3PO4

37. Baking soda is a white powder. It is a base with the formula NaHCO3
Baking soda is a white powder. It is a base with the formula NaHCO3. When vinegar containing acetic acd is poured onto the powder, bubbles appear. This reaction is called
carbonation
titration
neutralization
combustion

38. Which of the following elements is the most electronegative?
[He] 2s22p3
[He] 2s22p4
[He] 2s22p5
[He] 2s22p6

39. Which of the following compounds does not feature covalent bonding?
CCl4
KCl
H2O O2

40. Identify the element with an [Ar] 4s2 electron configuration?
potassium
calcium
titanium
germanium

41. Tritium is the form of hydrogen that contains two neutrons and one proton. What is the relationship between tritium and hydrogen?
Tritium is an isotope of hydrogen
Hydrogen is an isotope of tritium
Tritium is an ion of hydrogen
Hydrogen is ionized tritium

42. Which of the following elements is the MOST easily ionized?
nitrogen
neon
carbon
lithium

43. ANSWERS

44. Na

45. Bromine. Br

46. 3. Draw the Bohr Diagram for Magnesium.

52. c = speed of light (constant)
λ = wavelength
ν = frequency

53. c = speed of light (constant)
λ = wavelength
ν = frequency
E = energy
h = Planck’s constant

69. Isotopes of an atom could be detected based on which of the following characteristics?
atomic radius
nuclear charge
nuclear mass
number of electrons

70. A substance dissolves well in water but not in benzene
A substance dissolves well in water but not in benzene. Which of the following can be concluded about the substance?
The substance may be either polar or nonpolar.
The substance is nonpolar.
The substance is polar.
The substance is neither polar nor nonpolar.

71. When bonded with sulfur, which element will most likely form an ionic compound?
oxygen
calcium
hydrogen
chlorine

72. A violent reaction occurs when sodium is placed in water
A violent reaction occurs when sodium is placed in water. Which element would produce a similar reaction with water? Mg S K Cr

73. How many moles of sodium carbonate are in 500. mL of a 0
How many moles of sodium carbonate are in 500. mL of a M solution of sodium carbonate?
0.150 mole
0.840 mole
3.18 moles
150. moles

74. When you are done with an experiment, how should you dispose of used chemicals?
Mix all chemicals in a waste container and dump them in the trash.
Pour all chemicals down the sink.
Follow the intructions given to properly dispose of the particular chemical(s).
Mix the chemicals in a flask, and heat the mixture until it evaporates into the air.

75. Which of the following diatomic molecules has a triple bond?

76. A 2L sample of helium gas is heated under constant pressure from 20oC to 60oC. What is the final volume of the sample?
2.27 L
1.76 L
6.00 L
0.67 L

77. The nucleus of an atom emits a particle
The nucleus of an atom emits a particle. The particle is equal in size to a helium nucleus. What is this particle?
an alpha particle
a beta particle
a neutron
a gamma ray

78. Which compound will NOT dissolve in water?
(NH4)2S
FeCO3
Na2S
K3PO4

79. Baking soda is a white powder. It is a base with the formula NaHCO3
Baking soda is a white powder. It is a base with the formula NaHCO3. When vinegar containing acetic acd is poured onto the powder, bubbles appear. This reaction is called
carbonation
titration
neutralization
combustion

80. Which of the following elements is the most electronegative?
[He] 2s22p3
[He] 2s22p4
[He] 2s22p5
[He] 2s22p6

81. Which of the following compounds does not feature covalent bonding?
CCl4
KCl
H2O O2

82. Identify the element with an [Ar] 4s2 electron configuration?
potassium
calcium
titanium
germanium

83. Tritium is the form of hydrogen that contains two neutrons and one proton. What is the relationship between tritium and hydrogen?
Tritium is an isotope of hydrogen
Hydrogen is an isotope of tritium
Tritium is an ion of hydrogen
Hydrogen is ionized tritium

84. Which of the following elements is the MOST easily ionized?
nitrogen
neon
carbon
lithium