End Of Course: Chemistry (2002 VDOE Released Items)

Which of the following pieces of glassware can be used to measure the volume of a liquid with the greatest accuracy?
1. Test tube
2. Beaker
3. Flask
4. Graduated cylinder
1. Al
2. Sr
3. Si
4. Sb
Which of the following equations is balanced?
Most gases have the property of becoming increasingly soluble in a liquid as the temperature of the liquid decreases. Which graph shows this relationship?
How is 0.00124 expressed in proper scientific notation?
How many protons, neutrons, and electrons are in a neutral atom of sodium?
The system that shows a decrease in entropy (disorder) is--
1. air escaping from a tire
2. snow melting
3. salt dissolving in water
4. water freezing
The pH of a 0.1 molar aqueous solution of HCl would equal--
1. -1
2. 1
3. 11
4. 13
A catalyst is a substance used in chemical reactions to--
1. provide a higher activation energy pathway
2. decrease collisions between reactant molecules
3. increase the rate of the reaction
4. change the equilibrium to favor products
1. Accuracy
2. Continuity
3. Precision
4. Reliability
Which grouping identifies chemical properties?
1. Malleability, ductility, conductivity
2. Luster, hardness, texture
3. Combustibility, flammability, reactivity
4. Density, melting point, boiling point
From left to right across a period, what change is occurring within the atomic nuclei?
1. A proton is gained.
2. An electron is gained.
3. A neutron is lost.
4. The electron cloud size is decreasing.
1. Combination
2. Decomposition
3. Single replacement
4. Combustion
If the heat of fusion is 32.2 kJ/mol, the amount of heat energy required to melt 5.67 grams of FeO is--
1. 2.54 kJ
2. 3.26 kJ
3. 5.32 kJ
4. 18.3 kJ
1. endothermic
2. exothermic
3. reversible
4. at equilibrium
1. 5
2. 8
3. 28
4. 29
Which of the following substances is a weak electrolyte?
1. 0.077 moles
2. 1.2 moles
3. 1.5 moles
4. 30 moles
Water has several unique properties such as high boiling point, high surface tension, and low vapor pressure. The type of attraction that best accounts for these unique properties is--
1. dispersion forces
2. coordinate covalent bonding
3. hydrogen bonding
4. ionic bonding
Which of these reactions shows simple chemical decomposition?
1. the mass and the volume were multiplied
2. the mass of the cylinder was included in the density formula
3. the graduated cylinder accuracy is only +0.5 mL
4. the mass and volume were inverted in the density formula
1. A
2. B
3. C
4. D
The understanding that the position of an electron in an electron cloud cannot precisely be determined was developed by Werner Heisenberg and is known as the--
1. planetary model
2. uncertainty principle
3. quantum theory
4. first atomic theory
1. A
2. B
3. C
4. D
The Lewis electron dot system represents electrons in the--
1. outer energy level
2. inner level
3. middle level
4. core level
1. magnesium iodide
2. magnesium iodite
3. magnesium (II) iodide
4. magnesium diiodide
1. 31.5 g
2. 127 g
3. 216 g
4. 252 g
What is the final concentration if 50.0 mL of a 2.00 M solution are diluted to 500.0 mL?
1. 0.100 M
2. 0.200 M
3. 0.400 M
4. 1.00 M
1. Copper
2. Iron
3. Lead
4. Platinum
Isotopes of an element have different--
1. atomic numbers
2. atomic masses
3. numbers of protons
4. numbers of outer-shell electrons
1. Only ice and liquid water exist in equilibrium.
2. Water exists only as a solid.
3. Water exists only as a gas.
4. Ice, water vapor, and liquid water exist in equilibrium.
1. 504 kPa
2. 1110 kPa
3. 2220 kPa
4. 3320 kPa
When examining the physical properties of an unknown substance, which of the following characteristics is unsafe to observe?
1. Color
2. Weight
3. Form
4. Taste
The density of an unknown metal was determined to be 2.85 g/mL. The actual density was 2.70 g/mL. What is the percent error in this determination?
1. 0.056%
2. 0.15%
3. 5.6%
4. 94.4%
1. 1
2. 2
3. 4
4. 6
1. 1
2. 2
3. 3
4. 4
1. 1
2. 2
3. 3
4. 4
A student spills a diluted acid solution on his hand. He should--
1. wipe it off with a paper towel
2. let it air dry
3. apply a base solution to neutralize it
4. rinse it off with running water
The molar volume of an ideal gas in liters at STP is--
1. 4.0 atm
2. 3.0 atm
3. 2.0 atm
4. 1.0 atm
The type of bond found in magnesium chloride is--
1. covalent
2. nonpolar
3. ionic
4. metallic
Which of these is about 2 moles?
The elements that are characterized by having only five electrons in the p sublevel belong to which family of elements?
1. Transition
2. Alkali
3. Noble gas
4. Halogens
1. the boundary between liquid and vapor disappears
2. all the liquid molecules become vapor molecules
3. the number of liquid molecules vaporizing equals the number of vapor molecules condensing
4. the vapor pressure is greater than the atmospheric pressure
To indicate the number of atoms of each element present in a molecular compound, scientists use--
1. Roman numerals
2. superscripts
3. prefixes
4. subscripts
1. carbon tetrachloride
2. carbon chloride
3. monocarbon chloride
4. tetracarbon monochloride
The specific heat capacity of a substance is the quantity of heat required to change the temperature of 1 gram of a substance by--

End Of Course: Chemistry (2002 VDOE Released Items)

Multiple-Choice Exercise
Content © 2002 Commonwealth of Virginia Department of Education; Permission to Use Granted by VDOE; Author of Activity: Tami Maloney; All rights reserved.
No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

Which of the following pieces of glassware can be used to measure the volume of a liquid with the greatest accuracy?

Which of the following equations is balanced?

Most gases have the property of becoming increasingly soluble in a liquid as the temperature of the liquid decreases. Which graph shows this relationship?

How is 0.00124 expressed in proper scientific notation?

How many protons, neutrons, and electrons are in a neutral atom of sodium?

The system that shows a decrease in entropy (disorder) is--

The pH of a 0.1 molar aqueous solution of HCl would equal--

A catalyst is a substance used in chemical reactions to--

Which grouping identifies chemical properties?

From left to right across a period, what change is occurring within the atomic nuclei?

If the heat of fusion is 32.2 kJ/mol, the amount of heat energy required to melt 5.67 grams of FeO is--

**Which of the following substances is a weak electrolyte?**

**Water has several unique properties such as high boiling point, high surface tension, and low vapor pressure. The type of attraction that best accounts for these unique properties is--**

Which of these reactions shows simple chemical decomposition?

The understanding that the position of an electron in an electron cloud cannot precisely be determined was developed by Werner Heisenberg and is known as the--

The Lewis electron dot system represents electrons in the--

What is the final concentration if 50.0 mL of a 2.00 M solution are diluted to 500.0 mL?

Isotopes of an element have different--

When examining the physical properties of an unknown substance, which of the following characteristics is unsafe to observe?

The density of an unknown metal was determined to be 2.85 g/mL. The actual density was 2.70 g/mL. What is the percent error in this determination?

A student spills a diluted acid solution on his hand. He should--

The molar volume of an ideal gas in liters at STP is--

The type of bond found in magnesium chloride is--

Which of these is about 2 moles?

The elements that are characterized by having only five electrons in the p sublevel belong to which family of elements?

To indicate the number of atoms of each element present in a molecular compound, scientists use--

The specific heat capacity of a substance is the quantity of heat required to change the temperature of 1 gram of a substance by--

End Of Course: Chemistry (2002 VDOE Released Items)

Multiple-Choice ExerciseContent © 2002 Commonwealth of Virginia Department of Education; Permission to Use Granted by VDOE; Author of Activity: Tami Maloney; All rights reserved. No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

Which of the following pieces of glassware can be used to measure the volume of a liquid with the greatest accuracy?

Which of the following equations is balanced?

Most gases have the property of becoming increasingly soluble in a liquid as the temperature of the liquid decreases. Which graph shows this relationship?

How is 0.00124 expressed in proper scientific notation?

How many protons, neutrons, and electrons are in a neutral atom of sodium?

The system that shows a decrease in entropy (disorder) is--

The pH of a 0.1 molar aqueous solution of HCl would equal--

A catalyst is a substance used in chemical reactions to--

Which grouping identifies chemical properties?

From left to right across a period, what change is occurring within the atomic nuclei?

If the heat of fusion is 32.2 kJ/mol, the amount of heat energy required to melt 5.67 grams of FeO is--

Which of the following substances is a weak electrolyte?

Water has several unique properties such as high boiling point, high surface tension, and low vapor pressure. The type of attraction that best accounts for these unique properties is--

Which of these reactions shows simple chemical decomposition?

The understanding that the position of an electron in an electron cloud cannot precisely be determined was developed by Werner Heisenberg and is known as the--

The Lewis electron dot system represents electrons in the--

What is the final concentration if 50.0 mL of a 2.00 M solution are diluted to 500.0 mL?

Isotopes of an element have different--

When examining the physical properties of an unknown substance, which of the following characteristics is unsafe to observe?

The density of an unknown metal was determined to be 2.85 g/mL. The actual density was 2.70 g/mL. What is the percent error in this determination?

A student spills a diluted acid solution on his hand. He should--

The molar volume of an ideal gas in liters at STP is--

The type of bond found in magnesium chloride is--

Which of these is about 2 moles?

The elements that are characterized by having only five electrons in the p sublevel belong to which family of elements?

To indicate the number of atoms of each element present in a molecular compound, scientists use--

The specific heat capacity of a substance is the quantity of heat required to change the temperature of 1 gram of a substance by--

Multiple-Choice Exercise
Content © 2002 Commonwealth of Virginia Department of Education; Permission to Use Granted by VDOE; Author of Activity: Tami Maloney; All rights reserved.
No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

**Which of the following substances is a weak electrolyte?**

**Water has several unique properties such as high boiling point, high surface tension, and low vapor pressure. The type of attraction that best accounts for these unique properties is--**