Question 1

Carbon dioxide is always composed of three parts by weight of carbon and eight parts by weight of oxygen. This is an example of:

Accepted Answer

A)  Dalton's Atomic Theory. 
B)  The Law of Constant Composition. 
C)  The Law of Conservation of Energy. 
D)  The Law of Conservation of Mass. 
E)  The Law of Multiple Proportion. 
A)  Dalton's Atomic Theory. 
B)  The Law of Constant Composition. 
C)  The Law of Conservation of Energy. 
D)  The Law of Conservation of Mass. 
E)  The Law of Multiple Proportion.

Question 2

How many of each type of atoms does the compound mercury acetate, FePO4 contain?

Accepted Answer

A)  1 francium, 1 potassium, 4 oxygen 
B)  1 francium, 1 phosphorus, 4 oxygen 
C)  1 francium, 1 polonium, 4 oxygen 
D)  1 iron, 1 potassium, 4 oxygen 
E)  1 iron, 1 phosphorus, 4 oxygen 
A)  1 francium, 1 potassium, 4 oxygen 
B)  1 francium, 1 phosphorus, 4 oxygen 
C)  1 francium, 1 polonium, 4 oxygen 
D)  1 iron, 1 potassium, 4 oxygen 
E)  1 iron, 1 phosphorus, 4 oxygen

Question 3

A unifying principle that explains a body of facts is a:

Accepted Answer

A)  model. 
B)  law. 
C)  qualitative statement. 
D)  hypothesis. 
E)  theory. 
A)  model. 
B)  law. 
C)  qualitative statement. 
D)  hypothesis. 
E)  theory.

Question 4

Hydrogen peroxide contains 2 hydrogens and 2 oxygens. Write its chemical formula.

Accepted Answer

The answer of Hydrogen peroxide contains 2 hydrogens and 2...

Question 5

A statement that includes a measurement or number is a:

Accepted Answer

A)  model 
B)  law 
C)  quantitative statement 
D)  qualitative statement 
E)  hypothesis 
A)  model 
B)  law 
C)  quantitative statement 
D)  qualitative statement 
E)  hypothesis

Question 6

Which of the following is not a physical property of water?

Accepted Answer

A)  Water is a liquid at room temperature. 
B)  Water is transparent to visible light. 
C)  Water boils at 100°C. 
D)  Water freezes at 32°F. 
E)  Water can be broken down into hydrogen gas and oxygen gas. 
A)  Water is a liquid at room temperature. 
B)  Water is transparent to visible light. 
C)  Water boils at 100°C. 
D)  Water freezes at 32°F. 
E)  Water can be broken down into hydrogen gas and oxygen gas.

Question 7

Which of the following is not the symbol of an element?

Accepted Answer

A)  Cu 
B)  Ni 
C)  CO 
D)  Ag 
E)  C 
A)  Cu 
B)  Ni 
C)  CO 
D)  Ag 
E)  C

Question 8

Oxygen (O2) and ozone (O3) are _____________ of the same element.

Accepted Answer

Question 9

Match between columns
                        Premises: study of matter
fixed shape and volume
ClS1U1B12S1U1B0, BrS1U1B12S1U1B0, OS1U1B12S1U1B0
capacity to do work
density
graphite, diamond
decomposition
building blocks of matter
salt water
possible explanation of observations

Accepted Answer

The Answer of solid and chemical change and physical property is...

Question 10

Which of the following is heterogeneous?

Accepted Answer

A)  black coffee 
B)  copper pipe 
C)  a clear sugar solution 
D)  grape juice 
E)  a tossed salad 
A)  black coffee 
B)  copper pipe 
C)  a clear sugar solution 
D)  grape juice 
E)  a tossed salad

Question 11

A sample has a mass of 297 g and a volume of 33 cm3. What is the identity of the sample?

Accepted Answer

A)  silver (density = 10.5 g/cm3) 
B)  iron (density = 7.86 g/cm3) 
C)  mercury (density = 13.6 g/cm3) 
D)  copper (density = 8.92 g/cm3) 
E)  aluminum (density = 2.7 g/cm3) 
A)  silver (density = 10.5 g/cm3) 
B)  iron (density = 7.86 g/cm3) 
C)  mercury (density = 13.6 g/cm3) 
D)  copper (density = 8.92 g/cm3) 
E)  aluminum (density = 2.7 g/cm3)

Question 12

Which of the following would not convert a heterogeneous mixture into a more homogeneous material?

Accepted Answer

A)  filtering a salt solution 
B)  magnetically removing iron from an iron-sulfur mixture 
C)  filtering sand away from water 
D)  picking rice grains from a mixture of rice and peas 
E)  doing chromatography on an ink sample 
A)  filtering a salt solution 
B)  magnetically removing iron from an iron-sulfur mixture 
C)  filtering sand away from water 
D)  picking rice grains from a mixture of rice and peas 
E)  doing chromatography on an ink sample

Question 13

Which of the following is a metal?

Accepted Answer

A)  helium (He, atomic number 2) 
B)  nitrogen (N, atomic number 7) 
C)  sodium (Na, atomic number 11) 
D)  selenium (Se, atomic number 34) 
E)  carbon (C, atomic number 6) 
A)  helium (He, atomic number 2) 
B)  nitrogen (N, atomic number 7) 
C)  sodium (Na, atomic number 11) 
D)  selenium (Se, atomic number 34) 
E)  carbon (C, atomic number 6)

Question 14

Which of the following is a qualitative statement?

Accepted Answer

A)  The compound is contaminated. 
B)  The reactants are 99.95% pure. 
C)  The sample has a mass of 85 grams. 
D)  The reaction produced 112 g of a pure white solid. 
E)  The gas volume is twenty-two liters. 
A)  The compound is contaminated. 
B)  The reactants are 99.95% pure. 
C)  The sample has a mass of 85 grams. 
D)  The reaction produced 112 g of a pure white solid. 
E)  The gas volume is twenty-two liters.

Question 15

Which state of matter is characterized by a variable shape but not volume?

Accepted Answer

The answer of Which state of matter is characterized by...

Question 16

The energy is the capacity to do _____________.

Accepted Answer

The answer of The energy is the capacity to do...

Question 17

Which of the following does not describe a physical property?

Accepted Answer

A)  Aluminum melts at 660°C. 
B)  Elemental sulfur appears yellow in color. 
C)  A lead brick sinks in water. 
D)  Paper burns to ash. 
E)  Table sugar often appears as granulated powder. 
A)  Aluminum melts at 660°C. 
B)  Elemental sulfur appears yellow in color. 
C)  A lead brick sinks in water. 
D)  Paper burns to ash. 
E)  Table sugar often appears as granulated powder.

Question 18

A comfortable room temperature is 72 °F. Correctly estimating this temperature in Celsius yields:

Accepted Answer

A)  8.0 °C. 
B)  14 °C. 
C)  22 °C. 
D)  54 °C. 
E)  98 °C. 
A)  8.0 °C. 
B)  14 °C. 
C)  22 °C. 
D)  54 °C. 
E)  98 °C.

Question 19

Which characteristics apply to the gaseous state?
I. low density
II. high density
III. rapid molecular motion
IV. slow molecular motion
V. large distance between particles

Accepted Answer

A)  I, V 
B)  II, V 
C)  II, III, V 
D)  I, IV, V 
E)  I, III, V 
A)  I, V 
B)  II, V 
C)  II, III, V 
D)  I, IV, V 
E)  I, III, V

Question 20

Water is an unusual substance in that the density of the solid state (ice) is normally lower than the density of the liquid state. Suppose a friend brings you a glass of ice water. If you leave the glass untouched, what will happen over time?

Accepted Answer

A)  The ice will melt and the resulting water level will be lower than before. 
B)  The ice will melt and the resulting water level will be unchanged. 
C)  The ice will melt and the resulting water level will be higher than before. 
D)  The ice will only melt if the mixture is stirred. 
E)  None of these. 
A)  The ice will melt and the resulting water level will be lower than before. 
B)  The ice will melt and the resulting water level will be unchanged. 
C)  The ice will melt and the resulting water level will be higher than before. 
D)  The ice will only melt if the mixture is stirred. 
E)  None of these.

Carbon dioxide is always composed of three parts by weight of carbon and eight parts by weight of oxygen. This is an example of:

How many of each type of atoms does the compound mercury acetate, FePO₄ contain?

A unifying principle that explains a body of facts is a:

Hydrogen peroxide contains 2 hydrogens and 2 oxygens. Write its chemical formula.

A statement that includes a measurement or number is a:

Which of the following is not a physical property of water?

Which of the following is not the symbol of an element?

Oxygen (O₂) and ozone (O₃) are _____________ of the same element.

Which of the following is heterogeneous?

A sample has a mass of 297 g and a volume of 33 cm³. What is the identity of the sample?

Which of the following would not convert a heterogeneous mixture into a more homogeneous material?

Which of the following is a metal?

Which of the following is a qualitative statement?

Which state of matter is characterized by a variable shape but not volume?

The energy is the capacity to do _____________.

Which of the following does not describe a physical property?

A comfortable room temperature is 72 °F. Correctly estimating this temperature in Celsius yields:

Which characteristics apply to the gaseous state? I. low density II. high density III. rapid molecular motion IV. slow molecular motion V. large distance between particles

Water is an unusual substance in that the density of the solid state (ice) is normally lower than the density of the liquid state. Suppose a friend brings you a glass of ice water. If you leave the glass untouched, what will happen over time?

Atoms and Elements

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

Exam 1: The Nature of Chemistry

Carbon dioxide is always composed of three parts by weight of carbon and eight parts by weight of oxygen. This is an example of:

How many of each type of atoms does the compound mercury acetate, FePO4 contain?

A unifying principle that explains a body of facts is a:

Hydrogen peroxide contains 2 hydrogens and 2 oxygens. Write its chemical formula.

A statement that includes a measurement or number is a:

Which of the following is not a physical property of water?

Which of the following is not the symbol of an element?

Oxygen (O2) and ozone (O3) are _____________ of the same element.

Which of the following is heterogeneous?

A sample has a mass of 297 g and a volume of 33 cm3. What is the identity of the sample?

Which of the following would not convert a heterogeneous mixture into a more homogeneous material?

Which of the following is a metal?

Which of the following is a qualitative statement?

Which state of matter is characterized by a variable shape but not volume?

The energy is the capacity to do _____________.

Which of the following does not describe a physical property?

A comfortable room temperature is 72 °F. Correctly estimating this temperature in Celsius yields:

Which characteristics apply to the gaseous state? I. low density II. high density III. rapid molecular motion IV. slow molecular motion V. large distance between particles

Water is an unusual substance in that the density of the solid state (ice) is normally lower than the density of the liquid state. Suppose a friend brings you a glass of ice water. If you leave the glass untouched, what will happen over time?

Atoms and Elements

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

How many of each type of atoms does the compound mercury acetate, FePO₄ contain?

Oxygen (O₂) and ozone (O₃) are _____________ of the same element.

A sample has a mass of 297 g and a volume of 33 cm³. What is the identity of the sample?