問題一覧
1
super-heated matter
plasma
2
matter can be either physical and chemical properties
true
3
elements that lack/dont have the characteristics of a metal
nonmetal
4
example of phy properties
color
5
tastes sour
acid
6
pure substance can be separated into?
elements, compounds
7
abilty of a material to resist scratching (pp)
hardness
8
mass of an object
density
9
4 classification of matter
solid, liquid, gas, plasma
10
what metal is not solid in room temperature
mercury
11
made up of two or more substances which are mixed together but not chemically combined
mixture
12
example of salt
table salt
13
accepts H+ ions
base
14
example of nonmetal
oxygen
15
example of base
ammonia
16
compound that donates H+ ions
acid
17
phy property that depends on amount of matter presented/tested
extensive
18
reaction which forms salt and water
neutralization
19
definite volume but indefinite shape
liquid
20
what is colloidal dispersions also known as
colloid
21
no definite volume
gas
22
examples of intensive propert
color, hardness, boiling point
23
phy property that does not depend on the amount of matter present / being measured
intensive
24
temperature where liquid changes to gas (pp)
boiling point
25
change that do not alter the identity of a substance
physical change
26
3 classification of compounds( plural)
acids, bases, salts
27
properties of metals
lustrous, malleable, ductile, good conductor
28
example of chem propert
flammability
29
example of metalloid
boron
30
major difference between suspension and colloid
particle size
31
mixture w two or more phases
heterogeneous
32
example of acid
vinegar
33
definite volume and definite shape
solid
34
example of compound
water
35
matter can be classified to two composition
pure substance, mixture
36
substances composed of only one atom
elements
37
process to which plants transform solar energy to chemical energy
photosynthesis
38
example of homogeneous mixture
salt and water
39
substances composed of 2 or more atoms taht are chemically bonded together
compounds
40
constitute the greatest number of elements in the periodic table
metals
41
example of plasma
lightning
42
mixture that only has one phase and uniform composition
homogeneous
43
3 classification of elements(in order)
metal, non metal, metalloids
44
properties involved change in the substance's composition during chemical reaction
chemical properties
45
characteristics of substance which enables us to identify the substance
properties
46
property of a material taht pertains to the interaction of light
luster
47
compound that is formed when acid and base react
salt
48
occupies space and has mass
matter
49
taste bitter and feels slippery
base
50
change that produces new compound with a different chemical composition and a different set of properties
chemical change
51
mixtures can be classified as
homogeneous, heterogeneous
52
properties of non metal
dull appearance, brittle, poor conductors of heat and electricity, good insulators, low density
53
heterogeneous mixtures that have bigger particles than those of a solution but smaller than suspension
colloids
54
elements which have the properties of both metals and nonmetals
metalloids
55
substance that contains only one type of particle and has uniform composition
pure substance
56
ability of a metal to be hammered/shaped w/o breaking/cracking
malleability
57
turns red litmus paper to blue
base
58
substance that cannot be separated by physical means
pure substance
59
temperature where solid changes to liquid (pp)
melting point
60
turns blue litmus paper to red
acid
61
changes may be physical or chemical
changes in matter
62
examples of extensive propert
mass, length, shape
63
2 types of heterogeneous
suspension, colloids
64
composed of tiny molecules called atoms
matter
65
properties that is perceived by senses and can be observed, measured and tested w/o changing the composition of the matter
physical properties
66
2 properties of phy prop
intensive, extensive
67
example of heterogeneous
halo halo
68
heterogeneous mixtures that have particles bigger than colloids
suspension
69
example of metal
gold