問題一覧
1
Composed of 2 or more elements combined chemically in definite proportion.
compounds
2
Simplest type of matter that is composed of only one kind of atom
elements
3
Vis vitalis
life force
4
Branches of pure substance
elements and compounds
5
Elements of mixtures
homogeneous and heterogeneous mixtures
6
have definite shape and volume. The particles are tightly packed together and incompressible. How it expands slightly when heated
solid
7
has indefinite shape but has definite volume. Particles and close to one another but not in rigid and solid manner and they can slide past cach other.
liquid
8
takes the shape of container. But no definite volume. The particles are farther apart than those in liquid.
gas
9
formed by heating and Ionizing a gas. It is made up of groups of positive and negative charges, they have neither a definite volume nor shape. Often observed in lighting and comet tails.
plasma
10
produced when clouds of Bosons is cooled to temperature very close to absolute zero.
bose Einstein condensate
11
Classification of matter
pure substance and mixtures
12
Occupies space and has a mass and volume
matter
13
Matter is made up of _____
atom
14
Appearance is uniform throughout the sample
homogeneous
15
components are not evenly distributed in the sample, and can be physically identified.
heterogeneous
16
can be observed without changing the composition of substance
physical properties
17
are characteristics that can be observed with accompanying change in the chemical composition of the substance,
chemical properties
18
depends on the amount if matter
extensive properties
19
indicates how close a measurement is to true or to the accepted value.
accuracy
20
refers to the closeness of measurements within the set of data
precision
21
study of elements and chemicals
chemistry
22
matter, space, and has mass. solid, liquid, and gas.
physics
23
Solid
compact
24
Liquid
irregular shape
25
Gas
not compact
26
Origin of organic chemistry
spontaneous, iatrochemistry, modern chemistry
27
Spontaneous
non purposeful
28
vis vitalis mean "life force" by John Baron
iatrochemistry
29
What is organic chemistry
structure, properties, composition, reactions, and preparation of carbon containing compounds
30
Iatro is a greek word which means
physician or healer
31
Study of chemical and compounds
chemistry
32
The period of development until the XIV century, called
spontaneous
33
Who contributed to the beginning of the collapse of his teacher's theory.
fredrich wohler
34
A German chemist known for his work in both organic and inorganic chemistry, being the first to isolate the chemical elements beryllium and yttrium in pure metallic form.
fredrich wohler
35
the study of the nature, properties, and composition of matter, and how these undergo changes.
chemistry
36
plays an important part in all of the other natural sciences, basic, and applied. Plants growth and metabolism, the formation of igneous rocks, the role played by ozone in the atmosphere, the degradation of environmental pollutants, the properties of lunar soil, medical action of drugs, establishment of forensic evidence: none of these can be understood without the knowledge and perspective provided by ______
chemistry
37
A school of thought of the 16th and 17th centuries which sought to understand medicine and physiology in terms of chemistry.
iatrochemistry
38
Iatrochemistry means _____
medicine
39
promising beginning of development
iatrochemistry
40
all discoveries were casual, non-purposeful nature of everyday importance.
spontaneous