Question 1

An atom or group of atoms which are bonded together is known as (a, an)&#10;A)atom&#10;B)acid&#10;C)polymer&#10;D)molecule

Accepted Answer

A molecule is defined as a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

Question 2

A pure substance is&#10;A)any drug approved by the US Food & Drug Administration.&#10;B)any food certified to be free of bacteria and harmful ingredients&#10;C)a sample of a chemical containing only one type of molecule or atom&#10;D)none of these

Accepted Answer

A pure substance is defined as a material that has a constant composition and has consistent properties throughout the sample, such as a single type of molecule or atom.

Question 3

Entropy is best defined as&#10;A)the same as energy&#10;B)disorder&#10;C)boiling&#10;D)melting

Accepted Answer

Entropy is best defined as disorder, reflecting the degree of randomness or chaos in a system.

Question 4

Greek philosophers were famous for their&#10;A)advanced laboratories&#10;B)ability to describe nature&#10;C)early development of steel&#10;D)ability to speak multiple languages

Accepted Answer

Greek philosophers are renowned for their contributions to natural philosophy, where they used observation and reasoning to describe and understand the natural world, rather than relying on advanced laboratories or technological developments like the early development of steel. Their focus was more on abstract thought and the development of theories about nature, ethics, politics, and the cosmos. While some may have been multilingual, it was not their defining characteristic.

Question 5

The study of heat transfers and related forms of energy is known as&#10;A)fluid mechanics&#10;B)hydrodynamics&#10;C)thermodynamics&#10;D)electrochemical processes

Accepted Answer

Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy.

Question 6

Using a force to move a sample of matter over a distance is known as&#10;A)momentum&#10;B)energy&#10;C)work&#10;D)volatility

Accepted Answer

Work is defined as the process of using a force to move an object over a distance.

Question 7

Which form of energy is due to motion?&#10;A)kinetic&#10;B)potential&#10;C)chemical&#10;D)heat

Accepted Answer

Kinetic energy is the energy that an object possesses due to its motion.

Question 8

Which represents a compound? A)Ar B)S₈ C)H₂O D)none of these

Accepted Answer

A compound consists of atoms of different elements chemically combined together. H₂O represents a compound because it contains more than one type of element (hydrogen and oxygen).

Question 9

Which is a heterogeneous mixture?&#10;A)distilled water&#10;B)filtered apple juice&#10;C)apple pie&#10;D)olive oil

Accepted Answer

Apple pie is a heterogeneous mixture because it contains different ingredients that remain physically separate and can be seen as distinct parts, unlike the other options which are homogeneous mixtures.

Question 10

Which is a homogeneous mixture?&#10;A)tap water&#10;B)rocky road ice cream&#10;C)muddy water&#10;D)Thousand Island salad dressing

Accepted Answer

Tap water is a homogeneous mixture because it has a uniform composition throughout, meaning the substances it contains (mainly water and any dissolved minerals or gases) are evenly distributed.

Question 11

Which represents an element? A)H₂O B)P₄ C)CH₄ D)BeCl₂

Accepted Answer

The answer of Which represents an element? A)H₂O B)P₄ C)CH₄ D)BeCl₂...

Question 12

Which is true of alchemists?&#10;A)They tried to convert cheap metals into gold.&#10;B)They developed many useful chemical processes.&#10;C)They never reached their goal.&#10;D)All of these

Accepted Answer

The answer of Which is true of alchemists?&#10;A)They tried to...

Question 13

Which is true of Antoine Lavoisier?&#10;A)He developed the Law of Conservation of Matter (or Mass)&#10;B)He studied the nature of combustion (burning).&#10;C)He was executed by the French Revolutionists.&#10;D)All of these

Accepted Answer

The answer of Which is true of Antoine Lavoisier?&#10;A)He developed...

Question 14

Which law states that the universe's energy is constant?&#10;A)First Law of Thermodynamics&#10;B)Second Law of Thermodynamics&#10;C)Third Law of Thermodynamics&#10;D)Law of Conservation of Matter

Accepted Answer

The answer of Which law states that the universe's energy...

Question 15

Which law states that the universe's entropy is increasing?&#10;A)First Law of Thermodynamics&#10;B)Second Law of Thermodynamics&#10;C)Third Law of Thermodynamics&#10;D)Law of Conservation of Mass

Accepted Answer

The answer of Which law states that the universe's entropy...

Deck 2: The Natural Laws