Question 1

​Hydrocarbons are organic compounds.

Accepted Answer

A) True 
 B)False

Question 2

The idea that all elements are made up of molecules is called the atomic theory.

Accepted Answer

A) True 
 B)False

Question 3

An example of potential energy is ____.​

Accepted Answer

A)   ​electricity flowing through a wire
B)   ​the chemical energy in a candy bar
C)   ​a bullet fired at high velocity
D)   ​the falling of a leaf from a tree
E)   ​the flowing of water

Question 4

A classmate tells you that a statement heard on the news about an environmental process noted in a local ecosystem cannot be true because it has not been scientifically proven.You realize that ____.​

Accepted Answer

A)   ​this classmate is misinformed because science cannot prove anything,but it can disprove events conclusively
B)   ​this classmate is misinformed because science cannot prove or disprove anything absolutely
C)   ​this classmate is misinformed because the environmental process in question actually has been proven scientifically
D)   ​this classmate is correct
E)   ​this classmate has confused scientific theories and scientific laws

Question 5

All organic compounds are characterized by the presence of ____.​

Accepted Answer

A)   ​carbon
B)   ​hydrogen
C)   ​oxygen
D)   ​nitrogen
E)   ​phosphorus A

Question 6

​Most forms of energy can be classified as either ____.

Accepted Answer

A)   ​chemical or physical
B)   kinetic or mechanical
C)   ​potential or mechanical
D)   ​chemical or kinetic
E)   ​potential or kinetic

Question 7

An element ____.​

Accepted Answer

A)   ​can combine with protons to make an atom
B)   ​is made up of compounds
C)   ​can combine with one or more other elements to make a compound
D)   ​is defined by the number of electrons it has
E)   ​can only be organic

Question 8

Peer review involves scientists openly publishing details of the methods they used,the results of their experiments,and the reasoning behind their hypotheses for other scientists working in the same field to evaluate.​

Accepted Answer

A) True 
 B)False

Question 9

Match items with their appropriate chemical description.
-The nitrate ion​

Accepted Answer

A)  NH4+
B)  molecule
C)  electron
D)  proton
E)  neutronF) pHG) CaH) PI) mass numberJ) NO3-K) C6H12O6

Question 10

Matter is best described as ____.​

Accepted Answer

A)   ​thermodynamic
B)   ​something that has the capacity to do work
C)   ​positively charged
D)   ​something that can produce change
E)   ​anything that has mass and takes up space E

Question 11

Match items with their appropriate chemical description.
-The scale used to measure acidity​

Accepted Answer

A)  NH4+
B)  molecule
C)  electron
D)  proton
E)  neutronF) pHG) CaH) PI) mass numberJ) NO3-K) C6H12O6

Question 12

​Explain why the Bormann-Likens scientific investigation of clear-cutting forest watersheds is considered reliable science.

Accepted Answer

​It has been subjected to peer review,and other scientists have repeated the study and produced similar results.Reliable science consists of data,hypotheses,models,theories,and laws that are widely accepted by all or most of the scientists who are considered experts in the field under study.

Question 13

Scientific hypotheses and results that have not undergone the rigors of peer review,or that have been discarded as a result of peer review or additional research,are considered to be ____.​

Accepted Answer

A)   ​limited but accurate
B)   ​scientific laws
C)   ​scientific theories
D)   ​unreliable science
E)   ​reliable science

Question 14

Which list of items contains only ions?

Accepted Answer

A)   ​CO2,H2O,Na+,H-
B)   ​ Na+,H-,Pb,Hg
C)   ​Pb,Hg,CO2,NaCl
D)   ​Cl-,Na+,Ca2+,NO3-
E)   ​NaCl,NO,CO,NaOH

Question 15

Which statement best describes the first law of thermodynamics?​

Accepted Answer

A)   ​Atoms cannot be created or destroyed.
B)   ​Energy can neither be created nor destroyed.
C)   ​Heat is a form of kinetic energy.
D)   ​Solar energy is converted into chemical energy in living systems.
E)   ​When energy is used up,it's gone.

Question 16

Which list describes the sequence scientists typically follow in the beginning stages of their investigations about how nature works?​

Accepted Answer

A)   ​analyze data → search literature → perform experiment → identify a problem → ask a question
B)   ​ask a question → search literature → perform experiment → analyze data → identify a problem
C)   ​search literature → ask a question → identify a problem → analyze data → perform experiment
D)   ​identify a problem → search literature → ask a question → perform experiment → analyze data
E)   ​ask a question → search literature → identify a problem → perform experiment → analyze data

Question 17

A(n)____________________ is a type of matter that has a unique set of properties and that cannot be broken down into simpler substances by chemical means.

Accepted Answer

The answer of A(n)____________________ is a type of matter that...

Question 18

Why do scientists not talk about "proof" when discussing scientific research?

Accepted Answer

Scientists cannot prove or dis...

Question 19

Energy can be formally defined as the ____.​

Accepted Answer

A)   ​velocity of any moving object
B)   ​heat generated by atoms losing electrons
C)   ​capacity to do work
D)   ​displacement of heat from the sun to the earth
E)   ​process of moving objects

Question 20

The ____________________ ion,studied by Bormann and Likens,is an essential nutrient for plant growth.

Accepted Answer

The answer of The ____________________ ion,studied by Bormann and Likens,is...

Exam 2: Science - Matter - and Energy

Hydrocarbons are organic compounds.

Correct Answer
verified

The idea that all elements are made up of molecules is called the atomic theory.

Correct Answer
verified

An example of potential energy is ____.

Correct Answer
verified

A classmate tells you that a statement heard on the news about an environmental process noted in a local ecosystem cannot be true because it has not been scientifically proven.You realize that ____.

Correct Answer
verified

All organic compounds are characterized by the presence of ____.

Correct Answer
verified
A

Most forms of energy can be classified as either ____.

Correct Answer
verified

An element ____.

Correct Answer
verified

Peer review involves scientists openly publishing details of the methods they used,the results of their experiments,and the reasoning behind their hypotheses for other scientists working in the same field to evaluate.

Correct Answer
verified

Match items with their appropriate chemical description. -The nitrate ion

Correct Answer
verified

Matter is best described as ____.

Correct Answer
verified
E

Match items with their appropriate chemical description. -The scale used to measure acidity

Correct Answer
verified

Explain why the Bormann-Likens scientific investigation of clear-cutting forest watersheds is considered reliable science.

Scientific hypotheses and results that have not undergone the rigors of peer review,or that have been discarded as a result of peer review or additional research,are considered to be ____.

Correct Answer
verified

Which list of items contains only ions?

Correct Answer
verified

Which statement best describes the first law of thermodynamics?

Correct Answer
verified

Which list describes the sequence scientists typically follow in the beginning stages of their investigations about how nature works?

Correct Answer
verified

A(n)____________________ is a type of matter that has a unique set of properties and that cannot be broken down into simpler substances by chemical means.

Correct Answer
verified

Why do scientists not talk about "proof" when discussing scientific research?

Correct Answer
verified
Scientists cannot prove or dis...
View Answer

Energy can be formally defined as the ____.

Correct Answer
verified

The ____________________ ion,studied by Bormann and Likens,is an essential nutrient for plant growth.

Correct Answer
verified

Exam 2: Science - Matter - and Energy

​Hydrocarbons are organic compounds.

Correct AnswerverifiedShow Answer

The idea that all elements are made up of molecules is called the atomic theory.

Correct AnswerverifiedShow Answer

An example of potential energy is ____.​

Correct AnswerverifiedShow Answer

A classmate tells you that a statement heard on the news about an environmental process noted in a local ecosystem cannot be true because it has not been scientifically proven.You realize that ____.​

Correct AnswerverifiedShow Answer

All organic compounds are characterized by the presence of ____.​

Correct AnswerverifiedA

​Most forms of energy can be classified as either ____.

Correct AnswerverifiedShow Answer

An element ____.​

Correct AnswerverifiedShow Answer

Peer review involves scientists openly publishing details of the methods they used,the results of their experiments,and the reasoning behind their hypotheses for other scientists working in the same field to evaluate.​

Correct AnswerverifiedShow Answer

Match items with their appropriate chemical description. -The nitrate ion​

Correct AnswerverifiedShow Answer

Matter is best described as ____.​

Correct AnswerverifiedE

Match items with their appropriate chemical description. -The scale used to measure acidity​

Correct AnswerverifiedShow Answer

​Explain why the Bormann-Likens scientific investigation of clear-cutting forest watersheds is considered reliable science.

Scientific hypotheses and results that have not undergone the rigors of peer review,or that have been discarded as a result of peer review or additional research,are considered to be ____.​

Correct AnswerverifiedShow Answer

Which list of items contains only ions?

Correct AnswerverifiedShow Answer

Which statement best describes the first law of thermodynamics?​

Correct AnswerverifiedShow Answer

Which list describes the sequence scientists typically follow in the beginning stages of their investigations about how nature works?​

Correct AnswerverifiedShow Answer

A(n)____________________ is a type of matter that has a unique set of properties and that cannot be broken down into simpler substances by chemical means.

Correct AnswerverifiedShow Answer

Why do scientists not talk about "proof" when discussing scientific research?

Correct AnswerverifiedScientists cannot prove or dis...View AnswerShow Answer

Energy can be formally defined as the ____.​

Correct AnswerverifiedShow Answer

The ____________________ ion,studied by Bormann and Likens,is an essential nutrient for plant growth.

Correct AnswerverifiedShow Answer

Hydrocarbons are organic compounds.

Correct Answer
verified

Correct Answer
verified

An example of potential energy is ____.

Correct Answer
verified

A classmate tells you that a statement heard on the news about an environmental process noted in a local ecosystem cannot be true because it has not been scientifically proven.You realize that ____.

Correct Answer
verified

All organic compounds are characterized by the presence of ____.

Correct Answer
verified
A

Most forms of energy can be classified as either ____.

Correct Answer
verified

An element ____.

Correct Answer
verified

Peer review involves scientists openly publishing details of the methods they used,the results of their experiments,and the reasoning behind their hypotheses for other scientists working in the same field to evaluate.

Correct Answer
verified

Match items with their appropriate chemical description. -The nitrate ion

Correct Answer
verified

Matter is best described as ____.

Correct Answer
verified
E

Match items with their appropriate chemical description. -The scale used to measure acidity

Correct Answer
verified

Explain why the Bormann-Likens scientific investigation of clear-cutting forest watersheds is considered reliable science.

Scientific hypotheses and results that have not undergone the rigors of peer review,or that have been discarded as a result of peer review or additional research,are considered to be ____.

Correct Answer
verified

Correct Answer
verified

Which statement best describes the first law of thermodynamics?

Correct Answer
verified

Which list describes the sequence scientists typically follow in the beginning stages of their investigations about how nature works?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Scientists cannot prove or dis...
View Answer

Energy can be formally defined as the ____.

Correct Answer
verified

Correct Answer
verified