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Unit 1 Lesson 2 Chemistry Atoms and Elements Flashcards | StudBud
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Unit 1 Lesson 2 Chemistry Atoms and Elements
Unit 1 Lesson 2 Chemistry Atoms and Elements
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Chemistry Lesson 2
Flashcards
27 cards
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Questions
27
Answers
1
What is true of water (H2O)?
Water is made up of 3 types of atoms.
Water is actually made of gold.
Water is an atom.
Water is a compound.
2
What is the atomic mass for Iron?
25
55.845
26
81.845
3
Air is not a pure substance because
it is made up of a single substance.
it is made up of more than one type of matter.
it comes from people.
it fills up balloons.
4
A frozen popsicle and a melted popsicle are made of
a different substance
the same substance
5
copper
compound
element
mixture
6
Which is true of a substance that you cannot physically nor chemically separate into it's components.
It is made up of more than one type of atom.
It is a salad.
It is made up of several elements.
It is made up of one type of atom.
7
Which elements will have similar properties?
K, Ca, Sc
Ca, Y
Na, K, Rb
Na, Mg
8
Air is a pure substance.
False
True
9
Water is not flammable.
Physical
Chemical
10
Chopping wood
Chemical
Physical
11
What is the chemical symbol for Bohrium?
Bo
B
Bh
BH
12
What is a physical property of lead and iron?
Lead can be dangerous.
The chemical symbol of iron is Fe.
They are expensive.
They are both black.
13
What is the atomic mass of Seaborgium?
Sg
269
106
107
14
A pure substance made up of two or more different types of atoms joined by chemical bonds.
molecule
crystals and extended structures
atom
compound
15
What is the atomic number for Iron?
81.845
26
55.845
25
16
Which pair of elements is most likely to have similar properties?
Al and Si
C and N and O
B and Si
N and P
17
The smallest part of a compund that keeps the properties of that compound.
molecule
compound
crystals and extended structures
atom
18
Which of the following WOULD be considered matter?
light from the sun
sound of booming thunder
air in a tire
heat from a candle
19
The weight of an object on the moon is ______ the weight of an object on earth.
less than
greater than
the same as
20
Which of the components of air is a compound?
nitrogen
carbon dioxide
argon
oxygen
21
True or False: Light from the sun is matter.
True
False
22
What is the difference between a Physical and Chemical Property?
Chemical properties change the substance, physical propreties do not
There are no differences
Physical properties change a substance into a new substance.
If an object can spontanoulsy combust, it is a chemical property
23
What is the chemical symbol for Iron?
FE
Ir
I
Fe
24
What does mass measure?
How much something weighs.
The pull of gravity.
The amount of matter something has.
Size.
25
What is the chemical symbol for Tungsten?
W
Wu
Tu
T
26
The smallest unit of an element that still has the chemical identity of that element.
crystals and extended structures
molecule
atom
compound
27
Rust on an old car
Physical
Chemical
