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Physical Science Chapter 2-Matter Flashcards | StudBud
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Physical Science Chapter 2-Matter
Physical Science Chapter 2-Matter
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# matter
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Grinding quartz crystals down to produce sand is an example of a...
chemical change
change of state
physical change
chemical reaction
2
How is density of an object calculated?
Density x mass
Volume/mass
Mass/volume
Mass x volume
3
Name 2 types of pure substances.
Compounds and atoms
Miscible and immiscible
Elements and mixtures
Elements and compounds
4
One molecule of hydrochloric acid (HCl) contains ____ atom(s)
1
4
2
3
5
Which state of matter will hold its shape without a container?
liquid
plasma
solid
gas
6
Aluminum, oyxgen, and carbon are examples of ______.
Compounds
Mixtures
Elements
Atoms
7
You put 1 gram of salt into 1 liter of water and stir. The resulting liquid is an
a homogeneous mixture
A heterogeneous mixture
an immiscible mixture
a pure substance
8
The ____ of a substance is defined as its mass divided by its volume.
Volume
Density
Mass
Melting point
9
A substance has a mass of 360 g and a volume of 7.5 cm
3
. What is its density?
48 g/cm3
270 g/cm3
2700 g/cm3
480 g/cm3
10
Each molecule of iron oxide , Fe
2
O
3,
contains _____ atoms of iron.
5
6
2
4
11
Digesting food is an example of....
physical change
buoyancy
change of state
chemical change
12
The density of ______ is 1 g/cm
3.
Water
Lead
CO2
Saltwater
13
Which of the following is an example of a chemical change?
pounding gold into a coin
paint fading
ice melting
a puddle of water evaporating
14
Which of the following is
NOT
an example of a physical property?
boiling point
density
reactivity
freezing point
15
The chemical symbol O stands for the element _____.
Oxidize
Oxygen
Ozzy Osbourne
Ozone
16
The chemical formula for a chloride molecule, which contains 2 chlorine (Cl) atoms is _____
Cl3
Cl
2Cl
Cl 2
17
The chemical formula for water, H
2
O, means that each water molecule contains...
2 hydrogen atoms and 2 oxygen
2 hydrogen atoms and 0 oxygen atoms
2 hydrogen atoms and 1 oxygen atom
1 hydrogen atom and 2 oxygen atoms
18
The element that is most abundant in Earth is...
iron
silicon
oxygen
magnesium
19
A liquid changes rapidly into a gas at the liquid’s ......
condensation point
freezing point
melting point
boiling point
20
Which of the following is an example of a physical change?
cooking an egg
Rusting iron
dissolving salt in water
Burning wood into charcoal
21
Which of the following is
not
a potential sign of chemical change?
release of gas
change of color
production of gas
evaporation of water
22
Knowing the chemical properties of a substance will tell you how the substance .....
can be broken down into atoms
smells
reacts with other substances
looks
23
The science of what matter is made of and how it changes is....
kinetics
chemistry
physics
engineering
24
The chemical element that is most abundant in the human body is....
oxygen
nitrogen
carbon
iron
25
A molecule of water (H2O) is made from ____ combining 2 hydrogen atoms and 1 oxygen atom.
Chemically
Thermally
Ionically
Physically
26
Matter is anything that .....
has mass and takes up space
can be seen and touched
can be weighed
contains kinetic or potential energy
27
Which of the following is an example of chemical change?
strumming a guitar
melting of copper
converting matter into energy
Grilling a hamburger
28
Which of the following is an example of a gas-liquid mixture?
a carbonated drink
ice cubes
the air we breathe
a helium balloon
29
A substance that cannot be broken down into simpler substances is...
An atom
A mixture
An element
A compound
30
How many oxygen atoms are in one molecule of table sugar ( C
12
H
22
O
11
)?
11
2
12
22
31
The smallest unit of a substance that behaves like the substance is.....
an atom
an element
a molecule
a compound
32
A physical property of gold is its...
reactivity with powerful acids
density
non-flammability
none of the above
33
Lead has a density of 11.3 g/cm
3
and a mass of 282.5 g. What is its volume?
25 cm3
2500 cm3
250 cm3
2.5 cm3
34
A material that can be represented by a chemical formula is....
a pure substance
a homogeneous solution
an element
a mixture
35
The chemical symbol for sulfuric acid is H
2
SO
4.
How many
atoms
are contained in 1 molecule?
7
5
3
6
