Definitions

Learn the basic terms to endeavour the journey of Chemistry

1

It is the study of the interactions of matter with other matter and with energy

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Correct Answer:

Chemistry

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
2

It is anything that has mass and takes up space

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Correct Answer:

Matter

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
3

They are the characteristics that describe matter as it exists

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Correct Answer:

Physical properties

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
4

They are the characteristics of matter that describe how matter changes form in the presence of other matter

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Correct Answer:

Chemical properties

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
5

It occurs when a sample of matter changes one or more of its physical properties

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Correct Answer:

Physical change

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
6

it is the process of demonstrating a chemical property

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Correct Answer:

Chemical change

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
7

It is a sample of matter that has the same physical and chemical properties throughout

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Correct Answer:

substance

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
8

It is the simplest type of chemical substance; it cannot be broken down into simpler chemical substances by ordinary chemical means.

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Correct Answer:

Element

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
9

It is a combination of more than one element.

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Correct Answer:

Compound

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
10

It is the physical combinations of more than one substance

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Correct Answer:

mixtures

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
11

It is a mixture composed of two or more substances

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Correct Answer:

Heterogeneous mixture

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
12

It is a combination of two or more substances that is so intimately mixed that the mixture behaves as a single substance

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Correct Answer:

Solution

Explanation

Solution is also called homogeneous mixture

Reference

https://2012books.lardbucket.org/pdfs/beginning-chemistry.pdf
13

A combination of two or more substances that is so intimately mixed that the mixture behaves as a single substance

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Correct Answer:

homogeneous mixture

Reference

Beginning Chemistry v. 1.0
14

An element that conducts electricity and heat well and is shiny, silvery, solid, ductile, and malleable

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Correct Answer:

Metal

Reference

Beginning Chemistry v. 1.0
15

An element that exists in various colors and phases, is brittle, and does not conduct electricity or heat well

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Nonmetal

Reference

Beginning Chemistry v. 1.0
16

An element that has properties of both metals and nonmetals

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Correct Answer:

Semimetals

Explanation

also called metalloids

Reference

Beginning Chemistry v. 1.0
17

The process of knowing about the natural universe through observation and experiment

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Correct Answer:

science

Reference

Beginning Chemistry v. 1.0
18

An educated guess about how the natural universe works

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hypothesis

Explanation

A scientist who is familiar with how part of the natural universe works—say, a chemist—is interested in furthering that knowledge. That person makes a reasonable guess—a hypothesis—that is designed to see if the universe works in a new way as well>

Reference

Beginning Chemistry v. 1.0
19

A test of the natural universe to see if a guess (hypothesis) is correct

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Experiment

Reference

Beginning Chemistry v. 1.0
20

A general statement that explains a large number of observations

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Theory

Reference

Beginning Chemistry v. 1.0
21

A specific statement that is thought to be never violated by the entire natural universe

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Law

Explanation

A scientific law is the highest understanding of the natural universe that science has and is thought to be inviolate.

Reference

Beginning Chemistry v. 1.0
22

A description of the quality of an object

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Qualitative

Explanation

For example, physical properties are generally qualitative descriptions: sulfur is yellow, your math book is heavy, or that statue is pretty

Reference

Beginning Chemistry v. 1.0
23

A description of a specific amount of something

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Correct Answer:

Quantitative

Explanation

It means knowing how much of something is present, usually by counting or measuring it. As such, some quantitative descriptions would include 25 students in a class, 650 pages in a book, or a velocity of 66 miles per hour.

Reference

Beginning Chemistry v. 1.0