Question 1

The first step in acquiring scientific knowledge is often the observation or measurement of some aspect of nature.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following statements about soda pop is FALSE?

Accepted Answer

A) Soda pop is a chemical mixture of mostly sugar,water and carbon dioxide. 
B) The molecules important to fizzing are carbon dioxide and water. 
C) The carbon dioxide is forced to mix with the water by the presence of sugars. 
D) When a can is opened,the pressure release allows carbon dioxide to form bubbles. 
E) All of the above statements are true. 
A) Soda pop is a chemical mixture of mostly sugar,water and carbon dioxide. 
B) The molecules important to fizzing are carbon dioxide and water. 
C) The carbon dioxide is forced to mix with the water by the presence of sugars. 
D) When a can is opened,the pressure release allows carbon dioxide to form bubbles. 
E) All of the above statements are true.

Question 3

Which of the following is considered a hypothesis (as opposed to an observation)?

Accepted Answer

A) Spiders have eight legs. 
B) Birds can fly because they have hollow bones. 
C) Fresh lava from a volcano is hot. 
D) The Washington Monument is 555 feet tall. 
E) none of the above 
A) Spiders have eight legs. 
B) Birds can fly because they have hollow bones. 
C) Fresh lava from a volcano is hot. 
D) The Washington Monument is 555 feet tall. 
E) none of the above

Question 4

The scientific method ensures that poor theories are eliminated over time and good theories remain.

Accepted Answer

A) True 
 B)False

Question 5

John Dalton proposed the atomic theory.

Accepted Answer

A) True 
 B)False

Question 6

Theories can be tested and validated through experimentation.

Accepted Answer

A) True 
 B)False

Question 7

A good definition of chemistry is:

Accepted Answer

A) the science that seeks to understand what matter does by studying what atoms and molecules do. 
B) the science that seeks to understand what living organisms do by studying the molecules that make up the organism. 
C) the science that seeks to understand what the universe does by studying interactions of molecules with atoms. 
D) the science that seeks to understand the interactions of molecules for the sake of advancing human control over nature. 
E) none of the above 
A) the science that seeks to understand what matter does by studying what atoms and molecules do. 
B) the science that seeks to understand what living organisms do by studying the molecules that make up the organism. 
C) the science that seeks to understand what the universe does by studying interactions of molecules with atoms. 
D) the science that seeks to understand the interactions of molecules for the sake of advancing human control over nature. 
E) none of the above

Question 8

Which of the following is an example of an observation?

Accepted Answer

A) All matter is composed of small,indestructible particles called atoms. 
B) Reactions occur due to the transfer of electrons. 
C) When a can of soda pop is opened,a fizzing sound is heard. 
D) Flammable objects contain phlogiston. 
E) none of the above 
A) All matter is composed of small,indestructible particles called atoms. 
B) Reactions occur due to the transfer of electrons. 
C) When a can of soda pop is opened,a fizzing sound is heard. 
D) Flammable objects contain phlogiston. 
E) none of the above

Question 9

Which statement would NOT be an example of "quantification"?

Accepted Answer

A) The newest model of that car gets five more miles per gallon than last year's model. 
B) The price of milk went up ten cents per gallon. 
C) The average high temperature this July was two degrees higher than last year's average high temperature. 
D) The water in the swimming pool feels colder than it was yesterday. 
E) none of the above 
A) The newest model of that car gets five more miles per gallon than last year's model. 
B) The price of milk went up ten cents per gallon. 
C) The average high temperature this July was two degrees higher than last year's average high temperature. 
D) The water in the swimming pool feels colder than it was yesterday. 
E) none of the above

Question 10

Which of the following would be considered a theory?

Accepted Answer

A) Glass is fragile. 
B) Hot air rises. 
C) Gasoline has a very strong odor. 
D) Helium balloons float because helium is less dense than air. 
A) Glass is fragile. 
B) Hot air rises. 
C) Gasoline has a very strong odor. 
D) Helium balloons float because helium is less dense than air.

Question 11

All things are made of atoms or molecules.

Accepted Answer

A) True 
 B)False

Question 12

A hypothesis can never be proven as wrong.

Accepted Answer

A) True 
 B)False

Question 13

What term best describes a brief statement that summarizes many past observations and predicts new ones?

Accepted Answer

A) experiment 
B) hypothesis 
C) scientific law 
D) theory 
E) none of the above 
A) experiment 
B) hypothesis 
C) scientific law 
D) theory 
E) none of the above

Question 14

The definition of a scientific law is:

Accepted Answer

A) the same as a hypothesis. 
B) a way of learning that emphasizes observation and experimentation. 
C) the underlying reason for a scientific theory. 
D) a number of similar observations generalized into a brief statement summarizing past observations and predicting new ones. 
E) none of the above 
A) the same as a hypothesis. 
B) a way of learning that emphasizes observation and experimentation. 
C) the underlying reason for a scientific theory. 
D) a number of similar observations generalized into a brief statement summarizing past observations and predicting new ones. 
E) none of the above

Question 15

A scientific theory describes the underlying reasons for observations and laws.

Accepted Answer

A) True 
 B)False

Question 16

A sample of wood with a mass of 3.0 grams was burned in an open dish.The ashes weighed 1.2 grams.What happened to the rest of the wood?

Accepted Answer

A) The remaining mass was destroyed. 
B) The remaining 1.8 grams was converted into gaseous compounds. 
C) Nothing,the burned wood simply has a mass of 1.2 grams. 
D) The remaining 1.8 grams was converted into heat. 
E) none of the above 
A) The remaining mass was destroyed. 
B) The remaining 1.8 grams was converted into gaseous compounds. 
C) Nothing,the burned wood simply has a mass of 1.2 grams. 
D) The remaining 1.8 grams was converted into heat. 
E) none of the above

Question 17

Combustion means burning.

Accepted Answer

A) True 
 B)False

Question 18

Chemicals make up everything around you,including your own body.

Accepted Answer

A) True 
 B)False

Question 19

The properties of water do not depend on how the atoms are bonded together in the molecule.

Accepted Answer

A) True 
 B)False

The first step in acquiring scientific knowledge is often the observation or measurement of some aspect of nature.

Which of the following statements about soda pop is FALSE?

Which of the following is considered a hypothesis (as opposed to an observation)?

The scientific method ensures that poor theories are eliminated over time and good theories remain.

John Dalton proposed the atomic theory.

Theories can be tested and validated through experimentation.

A good definition of chemistry is:

Which of the following is an example of an observation?

Which statement would NOT be an example of "quantification"?

Which of the following would be considered a theory?

All things are made of atoms or molecules.

A hypothesis can never be proven as wrong.

What term best describes a brief statement that summarizes many past observations and predicts new ones?

The definition of a scientific law is:

A scientific theory describes the underlying reasons for observations and laws.

A sample of wood with a mass of 3.0 grams was burned in an open dish.The ashes weighed 1.2 grams.What happened to the rest of the wood?

Combustion means burning.

Chemicals make up everything around you,including your own body.

The properties of water do not depend on how the atoms are bonded together in the molecule.

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

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Exam 1: The Chemical World

The first step in acquiring scientific knowledge is often the observation or measurement of some aspect of nature.

Which of the following statements about soda pop is FALSE?

Which of the following is considered a hypothesis (as opposed to an observation)?

The scientific method ensures that poor theories are eliminated over time and good theories remain.

John Dalton proposed the atomic theory.

Theories can be tested and validated through experimentation.

A good definition of chemistry is:

Which of the following is an example of an observation?

Which statement would NOT be an example of "quantification"?

Which of the following would be considered a theory?

All things are made of atoms or molecules.

A hypothesis can never be proven as wrong.

What term best describes a brief statement that summarizes many past observations and predicts new ones?

The definition of a scientific law is:

A scientific theory describes the underlying reasons for observations and laws.

A sample of wood with a mass of 3.0 grams was burned in an open dish.The ashes weighed 1.2 grams.What happened to the rest of the wood?

Combustion means burning.

Chemicals make up everything around you,including your own body.

The properties of water do not depend on how the atoms are bonded together in the molecule.

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters