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Introduction to Matter Flashcards | StudBud
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Introduction to Matter
Introduction to Matter
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#Chemistry, #Physical Science #Matter
Flashcards
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Answers
1
In chemistry, elements are represented by
symbols.
formulas.
building blocks.
ratios.
2
How can you tell if an object will sink or float on a substance?
If an object is flat it always floats.
An object sinks if it is more dense than the substance.
An object floats if its density is less than the substance.
If an object is heavy is always sinks
3
The first person known to think that matter is made of atoms was
Dalton
Fahrenheit
Newton
Democritus
4
The density of liquid water is
.75 g/mL
100 g/mL
1.5 g/mL
1 g/mL
5
What is the density of a 100 gram block of wood if its volume is 50 cm
3
?
500 g/cm3
2 g/cm3
0.5 g/cm3
5,000 g/cm3
6
Weight is defined as
the force of gravity on an object or objects.
the amount of matter in something.
how big something is.
how much fat something has.
7
Which of the following is an example of a chemical change?
boiling water
cutting paper
burning gas in an engine
crushing a can
8
What holds atoms together
chemical bonds
temperature
density
gravity
9
The measure of how much space an object takes up is its
temperature.
mass.
weight.
volume.
10
What is the density of a 54 g sample of if its volume is 20 cm
3
?
0.19 g/cm3
2.7 g/cm3
1080 g/cm3
108 g/cm3
11
The measurement of the amount of mass contained in a given volume is called
density
kilogram
liter
weight
12
An electric current breaks the chemical bond between a metal and other elements it is called
electrolysis
panning
melting
boiling
13
In chemistry elements are represented by
formulas
symbols
ratios
building blocks
14
Which of these is an example of a physical change?
burning wood
The rusting of iron
Baking cookies
mixing a milkshake
15
Which type of matter consists of two or more substances that are not chemically combined?
mixture
elements
molecules
compound
16
All elements are composed of extremely small particles called
atoms
mixtures.
molecules
compounds
17
Which of the following represents the formula for density?
volume x mass
volume/mass
mass/volume
mass/velocity
18
Which of the following is part of Dalton's theory of atoms?
Atoms of each element can form only one compound.
every atom is different.
Atoms of different elements are different from one another.
All atoms have the same density
19
The measurement of how much matter an object contains is its
weight.
volume.
density.
mass
20
Which type of matter consists of two or more substances that are NOT chemically combined?
mixtures
elements
compounds
atoms
