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Chemistry review S1 Flashcards | StudBud
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Chemistry review S1
Chemistry review S1
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1
Which is NOT a sign of a chemical change?
Color change
Change in state
Formation of gas
Production of heat
2
What states Leucippus and Democritus
Theory of four elements
Matter was made of tiny particles called atoms
Composition of matter
3
Which of the following is a physical property of matter?
Melting point
Flammability
Ability to rust
Reactivity with acid
4
What goes here:
Pure substances
Compounds
Heterogeneous
Elements
5
Is composed of one type of atom, can’t be separed into simpler substances by physical or chemical means
Pure substances
Mixtures
Element
Compound
6
What goes here:
Heterogenous
Elements
Mixtures
Pure substances
7
Who organized the periodic table based on their atomic weight
Rutherford
Dimitri Mendeleev
Niel Bohr
John Dalton
8
Which of the following is an example of a chemical change?
Melting butter
Breaking glass
Burning wood
Dissolving sugar in water
9
two or more elements and always combined in the same proportion
Mixture
Pure substance
Compound
Element
10
What type of change occurs when water freezes into ice?
Biological change
Nuclear change
Chemical change
Physical change
11
In which era was the: fire domain, cooking foods, made ceramic tools and weapons
Age of metals
Han Dynasty (206 BC - 220 AD)
Neolitic (7000 BC)
1.4 million years ago
12
Why chemistry relates with the medicine
Production of materials
Determine the substance that constitute living beings
Formulate equations
Creation of medicine and tratements
13
Which civilization studied Chemistry with the embalming, make up and jewerly
Greece
Egyptians
China
14
With which science chemistry relates because provides laws and concepts, which are the base for its principles
Medicine
Biology
Physics
Mathematics
15
How does Chemistry relates with Engineering
explain the behavior of matter
Production of materials
For substances for the manufacture of fertilizers, herbicides, etc.
Creation of treatment and medicines
16
In which era was the: metal alloys, iron to make tools
Neolithic (7000 BC)
Han Dynasty
1.4 million years ago
Metal ages
17
Who state the first structure of the atom?
Ernest Rutherford
Mendeleev
Niel Bohr
John Dalton
18
Alchemy (first Chemists) has roots in….
Greece and China
Egypt and Greece
Greece and India
Egypt and China
19
When was the first controlled used of fire?
1.4 million years ago
7 million years ago
1 billion years ago
3.5 million years ago
20
What goes here:
Noble gases
Compounds
Mixtures
Acids
21
Which civilization studied Chemistry with the paper, ceramics, ink, gunpower and the compass
China
Greece
Egyptians
22
With which science chemistry relates for the uses of substance that increase crop yield
Physics
Agriculture
Biology
Engineering
23
Density is an example of a:
Chemical property
Physical property
Reactive property
Temporary property
24
Who state the theory of relativity
Albert Einstein
Marie and Pierre Curie
25
A cereal which type of mixture is
Heterogeneous
Homogeneous
