Download Matter Flashcards 5 - Henrico County Public Schools

Which of the following is not a state
of matter: plastic, solid, liquid,
or gas?
Plastic
SOL 5.4
What is matter?
Anything that takes up space and has
mass
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An atom of carbon has 6 protons, 6
neutrons, and 6 electrons. What is
the atomic mass of this atom?
SOL 5.4
What is the atomic number of
an atom?
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How are elements arranged on the
Periodic Table?
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The nucleus of an atom contains
____ and_____.
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SOL 5.4
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The atomic mass is 12.
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The number of protons
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They are arranged by their properties.
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Protons and neutrons
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What is an element?
Matter that has only one kind of atom
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Are the properties of a compound the
same as the properties of the elements
that make up the compound? Explain.
SOL 5.4
What are the three states of matter?
4
No, the properties of the compound are
different from those of the elements that
make it up. For instance, Sodium (Na) is
an explosive substance and Chlorine (Cl) is
a poisonous gas, but combined together,
they make NaCl, or table salt, which is not
poisonous or explosive.
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Solid, liquid, gas
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Explain how water can be found in all
three states of matter. How does it
change from one to the other?
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What is a compound?
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Liquid water can evaporate to become a
gas called water vapor. Water vapor
can condense to become liquid water.
Liquid water can freeze to become a
solid called ice. Ice can melt to become
liquid water.
SOL 5.4
A substance that results when two or
more elements join together
chemically
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When the elements hydrogen and
oxygen combine, the compound that
forms is water (H2 O). The number of
oxygen atoms is __________.
SOL 5.4
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SOL 5.4
One
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How many hydrogen atoms are found
In a molecule of sulfuric acid (H2SO4)?
2
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Symbols that show the number and
kind of atoms in a compound such as
NaCl are called - .
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Chemical formulas
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In a ___________ the particles are
physically combined but not dissolved.
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Mixture
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Amy shakes her salad dressing before
she pours it on her salad. This is
because the dressing is a
_____________.
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Suspension
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Dissolving sugar into tea is an example
of a __________.
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Solution
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All elements are made up of _____.
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SOL 5.4
Atoms
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When an ice cube melts, what happens
to the energy of the atoms in the ice?
The atoms gain energy.
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What is the difference between a
molecule of an element and a molecule
of a compound?
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Explain the difference between a
mixture and a compound.
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A molecule of an element is two or
more atoms of the same kind of
element joined together. A molecule
of a compound is made of different
kinds of elements joined together.
SOL 5.4
A mixture is two or more substances
joined physically. A compound is
two or more substances joined
chemically.
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The temperature at which a liquid
changes to a solid is called - .
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The freezing point
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When the temperature increases,
molecules _____.
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Speed up
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Heating the air in a balloon makes the
balloon ____.
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Expand
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In which state of matter are the particles
most closely packed together?
Solid
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In which state of matter are the particles
most spread far apart from each other?
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Gas
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A particle with a negative
charge in the atom is a(n)_______.
Electron
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What is anything that has mass, takes
up space, and can be a solid, liquid,
or a gas?
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Matter
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The number of protons in an atom of an
element is the ___.
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Atomic number
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A mixture in which particles of a
substance are scattered, but not
dissolved is a ___.
SOL 5.4
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Suspension
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The heaviest particles of an atom are
found in the ______.
Nucleus
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The smallest part of matter that
maintains its properties is a(n) ___.
Atom
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A particle in the atom that does not have
a charge is the _____.
Neutron
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The smallest part of a compound is a
________.
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Molecule
SOL 5.4
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