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1. The mystical search for the meaning of life2. The science of what matter does by studying atoms

and molecules3. The speculation about the nature of atoms and

molecules4. None of these5. All of these

1.1 Chemistry is:

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1. The mystical search for the meaning of life2. The science of what matter does by studying atoms

and molecules3. The speculation about the nature of atoms and

molecules4. None of these5. All of these

1.1 Chemistry is:

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1. Observations2. Models3. Laws 4. Experiments5. Guesses

1.2 Theories are validated by:

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1. Observations2. Models3. Laws 4. Experiments5. Guesses

1.2 Theories are validated by:

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1. Scientific theory2. Scientific law3. Hypothesis4. Fact5. Experiment

1.3 A brief statement that summarizes past observations and predicts future ones is called a:

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1. Scientific theory2. Scientific law3. Hypothesis4. Fact5. Experiment

1.3 A brief statement that summarizes past observations and predicts future ones is called a:

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1. Observations and experimentation 2. Facts and scientific laws3. Theories and experimentation4. Hypotheses and models5. None of the above

1.4 The scientific method emphasizes:

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1. Observations and experimentation 2. Facts and scientific laws3. Theories and experimentation4. Hypotheses and models5. None of the above

1.4 The scientific method emphasizes:

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1. Observation2. Scientific method3. Scientific law4. Scientific theory5. Hypothesis

1.5 Which term best fits the following definition: A theory before it has become well established?

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1. Observation2. Scientific method3. Scientific law4. Scientific theory5. Hypothesis

1.5 Which term best fits the following definition: A theory before it has become well established?

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1. Water2. Sugar 3. Light 4. Gasoline5. Sand

1.6 Which of the following would NOT be considered matter?

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1. Water2. Sugar 3. Light 4. Gasoline5. Sand

1.6 Which of the following would NOT be considered matter?

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1. Observe some aspect of nature2. Develop a scientific hypothesis3. Design a detailed experiment4. Check the results in triplicate5. Develop a scientific law to summarize

observations

1.7 What is the first step in the scientific method?

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1. Observe some aspect of nature2. Develop a scientific hypothesis3. Design a detailed experiment4. Check the results in triplicate5. Develop a scientific law to summarize

observations

1.7 What is the first step in the scientific method?

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1. Sticky atoms2. Strong attachments 3. Chemical bonds4. Molecular bonds 5. Attractive forces

1.8 The connections that hold atoms to each other are called:

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1. Sticky atoms2. Strong attachments 3. Chemical bonds4. Molecular bonds 5. Attractive forces

1.8 The connections that hold atoms to each other are called:

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1. All matter contains the same mass.2. Matter can be converted to less massive things.3. Matter can be converted to more massive things. 4. Mass is neither created nor destroyed in a

chemical reaction.5. Mass can be either created or saved in a

chemical reaction.

1.9 Which of the following statements best describes the Law of Conservation of Mass?

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1. All matter contains the same mass.2. Matter can be converted to less massive things.3. Matter can be converted to more massive things. 4. Mass is neither created nor destroyed in a

chemical reaction.5. Mass can be either created or saved in a

chemical reaction.

1.9 Which of the following statements best describes the Law of Conservation of Mass?

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1. Lead 2. Salt 3. Car 4. Chair5. All of the above

1.10 Which of the following can be classified as matter?

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1. Lead 2. Salt 3. Car 4. Chair5. All of the above

1.10 Which of the following can be classified as matter?

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1. Curious2. Courageous 3. Competent4. Clueless5. Careful

1.11 What is one important quality for being a successful chemist?

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1. Curious2. Courageous 3. Competent4. Clueless5. Careful

1.11 What is one important quality for being a successful chemist?

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1. Dalton 2. Lavoisier3. Proust 4. Rutherford5. Aristotle

1.12 Which one of the following scientists stated and studied the Law of Conservation of Mass?

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1. Dalton 2. Lavoisier3. Proust 4. Rutherford5. Aristotle

1.12 Which one of the following scientists stated and studied the Law of Conservation of Mass?

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1. Dalton2. Lavoisier3. Proust4. Rutherford5. Aristotle

1.13 Which scientist proposed that all matter was composed of small, indestructible particles called atoms?

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1. Dalton2. Lavoisier3. Proust4. Rutherford5. Aristotle

1.13 Which scientist proposed that all matter was composed of small, indestructible particles called atoms?

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1. Air2. Shampoo 3. Water 4. Turpentine5. All of the above

1.14 Which of the following is a chemical?

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1. Air2. Shampoo 3. Water 4. Turpentine5. All of the above

1.14 Which of the following is a chemical?

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1. Only a scientific hypothesis can be scrutinized, while a theory is generally accepted and never changes.

2. A hypothesis is a summary of observed behavior, while a theory is an explanation of the behavior.

3. Once a hypothesis has been proven to be accurate, it becomes a theory.

4. A scientific hypothesis is a testable assumption, while a theory is an accepted model used to explain the way nature is and predict future behavior.

5. A hypothesis is a definite explanation for an observation, while a theory is just an educated guess.

1.15 What is the difference between a scientific hypothesis and a theory?

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1. Only a scientific hypothesis can be scrutinized, while a theory is generally accepted and never changes.

2. A hypothesis is a summary of observed behavior, while a theory is an explanation of the behavior.

3. Once a hypothesis has been proven to be accurate, it becomes a theory.

4. A scientific hypothesis is a testable assumption, while a theory is an accepted model used to explain the way nature is and predict future behavior.

5. A hypothesis is a definite explanation for an observation, while a theory is just an educated guess.

1.15 What is the difference between a scientific hypothesis and a theory?

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1. The addition of battery acid to sugar results in the formation of a black substance and smoke.

2. Gases consist of molecules in constant random motion.

3. The burning of wood results in a flame, heat, smoke, and ash.

4. A pure compound always contains definite or constant proportions of elements by mass.

5. None of the above

1.16 Which of the following is an example of a scientific theory?

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1. The addition of battery acid to sugar results in the formation of a black substance and smoke.

2. Gases consist of molecules in constant random motion.

3. The burning of wood results in a flame, heat, smoke, and ash.

4. A pure compound always contains definite or constant proportions of elements by mass.

5. None of the above

1.16 Which of the following is an example of a scientific theory?

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1.17 Which of the following is an example of an observation?

1. Energy may be converted from one form to another, but the total quantity of energy remains constant.

2. Gases consist of molecules in constant random motion.

3. The burning of wood results in a flame, heat, smoke, and ash.

4. A pure compound always contains definite or constant proportions of elements by mass.

5. None of the above

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1.17 Which of the following is an example of an observation?

1. Energy may be converted from one form to another, but the total quantity of energy remains constant.

2. Gases consist of molecules in constant random motion.

3. The burning of wood results in a flame, heat, smoke, and ash.

4. A pure compound always contains definite or constant proportions of elements by mass.

5. None of the above

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1.18 Which of the following is a scientific law?

1. Energy may be converted from one form to another, but the total quantity of energy remains constant.

2. Gases consist of molecules in constant random motion.

3. The burning of wood results in a flame, heat, smoke, and ash.

4. At absolute zero, the motion of all atoms stop.5. None of the above

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1.18 Which of the following is a scientific law?

1. Energy may be converted from one form to another, but the total quantity of energy remains constant.

2. Gases consist of molecules in constant random motion.

3. The burning of wood results in a flame, heat, smoke, and ash.

4. At absolute zero, the motion of all atoms stop.5. None of the above