Question 1

What are the important characteristics of the scientific method?

Accepted Answer

The important characteristics of the scientific method include the observation of phenomena,the formulation of a hypothesis to explain the observed phenomena,the testing of the hypothesis by experiment,and the formulation of laws and theories.

Question 2

The key to success in chemistry is:

Accepted Answer

A) curiosity. 
B) mathematical skills. 
C) commitment. 
D) practice. 
E) all of the above 
A) curiosity. 
B) mathematical skills. 
C) commitment. 
D) practice. 
E) all of the above E

Question 3

Atoms and molecules determine how matter behaves.

Accepted Answer

A) True 
 B)False  True

Question 4

Lavoisier developed the law of conservation of mass.

Accepted Answer

A) True 
 B)False

Question 5

If a hypothesis is falsifiable,it means that the hypothesis was once considered true but is now considered false.

Accepted Answer

A) True 
 B)False

Question 6

What is chemistry?

Accepted Answer

Chemistry is branch of science

Question 7

A scientific law is a brief statement that summarizes past observations and predicts future ones.

Accepted Answer

A) True 
 B)False

Question 8

Chemists study the properties of substances and the particles that compose those substances.

Accepted Answer

A) True 
 B)False

Question 9

A theory can only exist after many experiments have validated a hypothesis.

Accepted Answer

A) True 
 B)False

Question 10

Observations from experiments are used to test theories.

Accepted Answer

A) True 
 B)False

Question 11

The Greek philosophers used observation and experimentation to understand the world.

Accepted Answer

A) True 
 B)False

Question 12

If experimental results contradict a hypothesis,the hypothesis must be either revised or discarded.

Accepted Answer

A) True 
 B)False

Question 13

The scientific method emphasizes reason as the way to understand the world.

Accepted Answer

A) True 
 B)False

Question 14

A theory is always true and can never be proven as wrong.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following items does NOT contain chemicals?

Accepted Answer

A) drain cleaner 
B) organically grown vegetables 
C) air 
D) insecticides 
E) All of the above contain chemicals. 
A) drain cleaner 
B) organically grown vegetables 
C) air 
D) insecticides 
E) All of the above contain chemicals.

Question 16

A theory is the equivalent of an opinion.

Accepted Answer

A) True 
 B)False

Question 17

Antoine Lavoisier proposed the atomic theory.

Accepted Answer

A) True 
 B)False

Question 18

Charcoal was burned in a barbecue grill.The ashes that remained weighed considerably less than the charcoal that was burned.Does this mean that the law of conservation of mass is wrong? Explain.

Accepted Answer

No.The gaseous products formed during th

Question 19

Chemistry is the science that seeks to understand what matter does by studying living organisms.

Accepted Answer

A) True 
 B)False

Question 20

Different molecules can have different shapes.

Accepted Answer

A) True 
 B)False

What are the important characteristics of the scientific method?

The key to success in chemistry is:

Atoms and molecules determine how matter behaves.

Lavoisier developed the law of conservation of mass.

If a hypothesis is falsifiable,it means that the hypothesis was once considered true but is now considered false.

What is chemistry?

A scientific law is a brief statement that summarizes past observations and predicts future ones.

Chemists study the properties of substances and the particles that compose those substances.

A theory can only exist after many experiments have validated a hypothesis.

Observations from experiments are used to test theories.

The Greek philosophers used observation and experimentation to understand the world.

If experimental results contradict a hypothesis,the hypothesis must be either revised or discarded.

The scientific method emphasizes reason as the way to understand the world.

A theory is always true and can never be proven as wrong.

Which of the following items does NOT contain chemicals?

A theory is the equivalent of an opinion.

Antoine Lavoisier proposed the atomic theory.

Charcoal was burned in a barbecue grill.The ashes that remained weighed considerably less than the charcoal that was burned.Does this mean that the law of conservation of mass is wrong? Explain.

Chemistry is the science that seeks to understand what matter does by studying living organisms.

Different molecules can have different shapes.

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

Exam 1: The Chemical World

What are the important characteristics of the scientific method?

The key to success in chemistry is:

Atoms and molecules determine how matter behaves.

Lavoisier developed the law of conservation of mass.

If a hypothesis is falsifiable,it means that the hypothesis was once considered true but is now considered false.

What is chemistry?

A scientific law is a brief statement that summarizes past observations and predicts future ones.

Chemists study the properties of substances and the particles that compose those substances.

A theory can only exist after many experiments have validated a hypothesis.

Observations from experiments are used to test theories.

The Greek philosophers used observation and experimentation to understand the world.

If experimental results contradict a hypothesis,the hypothesis must be either revised or discarded.

The scientific method emphasizes reason as the way to understand the world.

A theory is always true and can never be proven as wrong.

Which of the following items does NOT contain chemicals?

A theory is the equivalent of an opinion.

Antoine Lavoisier proposed the atomic theory.

Charcoal was burned in a barbecue grill.The ashes that remained weighed considerably less than the charcoal that was burned.Does this mean that the law of conservation of mass is wrong? Explain.

Chemistry is the science that seeks to understand what matter does by studying living organisms.

Different molecules can have different shapes.

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