Question 1

Which process is endothermic?

Accepted Answer

A)  burning wood in a fireplace 
B)  heating water to convert it to steam 
C)  burning gasoline in a combustion engine 
D)  digesting food 
A)  burning wood in a fireplace 
B)  heating water to convert it to steam 
C)  burning gasoline in a combustion engine 
D)  digesting food

Question 2

Which phase of matter has a definite volume and shape?

Accepted Answer

A)  plasma 
B)  solid 
C)  liquid 
D)  gas 
A)  plasma 
B)  solid 
C)  liquid 
D)  gas

Question 3

Liquid gasoline is heated and becomes gasoline vapor. The gasoline vapor is then ignited by a spark, causing a fire. The entire process is:

Accepted Answer

A)  first an exothermic change followed by an endothermic process. 
B)  first an endothermic change followed by an exothermic process. 
C)  only exothermic changes. 
D)  only endothermic changes. 
A)  first an exothermic change followed by an endothermic process. 
B)  first an endothermic change followed by an exothermic process. 
C)  only exothermic changes. 
D)  only endothermic changes.

Question 4

Which example has the MOST kinetic energy?

Accepted Answer

A)  a car driving at 80 mph 
B)  a snail moving across the ground 
C)  an airplane flying over Texas 
D)  a 2-pound weight resting on the floor 
A)  a car driving at 80 mph 
B)  a snail moving across the ground 
C)  an airplane flying over Texas 
D)  a 2-pound weight resting on the floor

Question 5

Which example BEST describes something moving to a higher energy state?

Accepted Answer

A)  a ball rolling off a table 
B)  a carbonated 2-liter bottle of soda erupting after opening it for the first time 
C)  organizing your room 
D)  riding a bicycle down a hill 
A)  a ball rolling off a table 
B)  a carbonated 2-liter bottle of soda erupting after opening it for the first time 
C)  organizing your room 
D)  riding a bicycle down a hill

Question 6

Mineral deposits (known as soap scum) can be removed from your bathtub by reacting with vinegar. This changes the soap scum to a new compound that more easily washes away. This process does not change the soap scum's state of matter. The removal of soap scum by the addition of vinegar:

Accepted Answer

A)  involves both chemical and physical changes. 
B)  involves only chemical changes or processes. 
C)  involves only physical changes or processes. 
D)  cannot be done with the materials listed. 
A)  involves both chemical and physical changes. 
B)  involves only chemical changes or processes. 
C)  involves only physical changes or processes. 
D)  cannot be done with the materials listed.

Question 7

Which picture BEST represents a mixture?

Accepted Answer

A)  a. 
B)  b. 
C)  c. 
D)  All of these pictures represent a mixture. 
A)  a. 
B)  b. 
C)  c. 
D)  All of these pictures represent a mixture.

Question 8

Which picture BEST represents a homogeneous mixture?

Accepted Answer

A)  a. 
B)  b. 
C)  c. 
D)  All of these pictures represent a homogeneous mixture. 
A)  a. 
B)  b. 
C)  c. 
D)  All of these pictures represent a homogeneous mixture.

Question 9

Which mixture is heterogeneous?

Accepted Answer

A)  water from a creek or small river 
B)  purified water 
C)  fresh milk recently purchased from the grocery store 
D)  a cup of black coffee 
A)  water from a creek or small river 
B)  purified water 
C)  fresh milk recently purchased from the grocery store 
D)  a cup of black coffee

Question 10

A patient arrives at a doctor's office complaining of head congestion and lethargy. The nurse thinks the patient may have a sinus infection. The nurse is making a _____ concerning her patient's condition.

Accepted Answer

A)  theory 
B)  scientific law 
C)  hypothesis 
D)  postulate 
A)  theory 
B)  scientific law 
C)  hypothesis 
D)  postulate

Which process is endothermic?

Which phase of matter has a definite volume and shape?

Liquid gasoline is heated and becomes gasoline vapor. The gasoline vapor is then ignited by a spark, causing a fire. The entire process is:

Which example has the MOST kinetic energy?

Which example BEST describes something moving to a higher energy state?

Mineral deposits (known as soap scum) can be removed from your bathtub by reacting with vinegar. This changes the soap scum to a new compound that more easily washes away. This process does not change the soap scum's state of matter. The removal of soap scum by the addition of vinegar:

Which picture BEST represents a mixture?

Which picture BEST represents a homogeneous mixture?

Which mixture is heterogeneous?

A patient arrives at a doctor's office complaining of head congestion and lethargy. The nurse thinks the patient may have a sinus infection. The nurse is making a _____ concerning her patient's condition.

Measurement

Atoms

Light and Electronic Structure

Chemical Bonds Compounds

Chemical Reactions

Mass Stoichiometry

Energy

Covalent Bonding and Molecules

Solids, Liquids, and Gases

Solutions

Acids Bases

Reaction Rates Equilibrium

Oxidation-Reduction Reactions

Organic Chemistry and Biomolecules

Nuclear Chemistry

Filters

Exam 1: Foundations

Which process is endothermic?

Which phase of matter has a definite volume and shape?

Liquid gasoline is heated and becomes gasoline vapor. The gasoline vapor is then ignited by a spark, causing a fire. The entire process is:

Which example has the MOST kinetic energy?

Which example BEST describes something moving to a higher energy state?

Mineral deposits (known as soap scum) can be removed from your bathtub by reacting with vinegar. This changes the soap scum to a new compound that more easily washes away. This process does not change the soap scum's state of matter. The removal of soap scum by the addition of vinegar:

Which picture BEST represents a mixture?

Which picture BEST represents a homogeneous mixture?

Which mixture is heterogeneous?

A patient arrives at a doctor's office complaining of head congestion and lethargy. The nurse thinks the patient may have a sinus infection. The nurse is making a _____ concerning her patient's condition.

Measurement

Atoms

Light and Electronic Structure

Chemical Bonds Compounds

Chemical Reactions

Mass Stoichiometry

Energy

Covalent Bonding and Molecules

Solids, Liquids, and Gases

Solutions

Acids Bases

Reaction Rates Equilibrium

Oxidation-Reduction Reactions

Organic Chemistry and Biomolecules

Nuclear Chemistry

Filters