Chapter 1: Matter, measurements and calculations Flashcards Preview

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Flashcards in Chapter 1: Matter, measurements and calculations Deck (33):
1

anything that has mass and occupies space

matter

2

measurement of the amount of matter in an object

mass

3

independent of the location of an object.
ie: An object on earth has the same ___ as the same object on the moon

mass

4

___has definite volume and shape; atoms or molecules have strong attraction

solid

5

___has a definite volume and shape of the container; atoms or molecules have medium attraction

liquid

6

___expands to fill it's container; has no definite volume, or shape; atoms or molecules have weak attraction

gas

7

____can be observed or measured without changing the type of matter present, ie: color, taste, hardness, size, ability to mix with other substances

physical properties

8

___are properties that matter describe how it might change into other types of matter: ie: flammability, chemical reactivity

chemical properties

9

___changes in matter that do not change the type of matter, ie: mixing, boiling, melting, freezing, cutting, crushing

physical changes

10

___changes in matte that DO change the type of matter, ie: burning, cooking, changing color

chemical changes

11

Which theory describes the following?

All matter is made up of atoms

Elements are made up of atoms that are identical

Compounds are combinations of atoms of 2 or more elements

Every molecule of a specific compound always contains the same # of atoms in each kind of element found in the compound

In chemical reactions, atoms are rearranged, separated, combined but are never created or destroyed

Dalton's 1808 Atomic Theory

12

All matter is made up of tiny particles called__

atoms

13

substances are called ___ which are made up of atoms that are all identical

elements

14

substances called ___are combinations of atoms of two or more elements

compounds

15

every molecule of a specific comound always contains the same number of ___of each kind of element found in a compound

atoms

16

In chemical reactions, atoms are rearranged, separated, or combined but are never ___ nor ___

created nor destroyed

17

elements are pure substances that are made up of ____molecules or individual atoms of the same kind

homoatomic

18

Oxygen and cupper are examples of what kind of molecules?

homoatomic molecules

19

compounds are pure substances that are made up of ___ molecules or individual atoms (ions) of 2 or more different kinds

heteroatomic

20

Wate and table salt are examples of what kind of molecules?

heteroatomic molecules

21

____is the smallest particle of a pure substance that is capable of a stable independent existence

molecule

22

Molecules are limited number of atoms held together by a force called

chemical bond

23

smallest unit of matter that retains the same properties as the bulk matter

atoms

24

contains 2 atoms

diatomic molecules

25

contains 3 atoms

triatomic molecules

26

contains more than 3 atoms

polyatomic molecules

27

molecules with only one type of atom

homoatomic molecule

28

molecules with more than one type of atom

heteroatomic molecule

29

contain 2 or more pure substances

not necessarily bonded together

mixture

30

uniformly mixed, even distribution of the pure substances that are mixed

homogeneous mixture

31

unevenly mixed, UNeven distribution of the pure substance that are mixed.

cloudy appearance

will settle into layers

heterogenous mixture

32

Water boils at?
F?
C?
K?

212 degrees Farenheight
100 Degrees Celsius
373 Kalvin

33

Water freezes at?

32 degrees Farenheight