Enough Elements & Atoms Already!
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Transcript of Enough Elements & Atoms Already!
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Enough Elements & Atoms Already!
Electric Energy!
CrazyCompounds
Hip Hydrogen
Bonding
Sassy Solutions
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These are substances that cannot be broken down
chemically into simpler kinds of matter.
What are Elements? 5
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Atoms are composed of which these three subatomic . (give the charges of each)
What are positively charged protons, no
charged neutrons, and negatively charged
electrons? 10
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These are high-energy particles that orbit about the nucleus at very high speeds in different energy levels.
15What are electrons?
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These are atoms of the same element that have a
different number of neutrons.
What are isotopes?
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These are the 4 most common elements in living
cells.
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What are Hydrogen, Oxygen, Nitrogen,
and Carbon?
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Matter can exist in these three states.
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What are solid, liquid, gas?
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This type of reaction occurs when one or more substances change to produce one or more
new substances.
What is a chemicalreaction? 10
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This is a chemical substance that reduces the amount of activation energy needed for a reaction to
take place.
What is a catalyst?
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During this reaction, a reactant gains one or more electrons, becoming more negative in
charge.
What is a reduction reaction?
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This type of reaction has a loss of net energy. (Also describe how
it is observed on a graph)
What is a exothermic reaction, and products are graphed below the
reactants.
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When atoms of two or more different elements are joined by
chemical bonds these are formed.
5What are
compounds?
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This is what we call atoms with an electrical charge.
What are ions?
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Because of the number of unpaired electrons in its outer shell, carbon is
able to form this many covalent bonds with other atoms.
What are 4?
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This is how we explain the difference between an ionic bond and a covalent bond.
In an ionic bond electrons are exchanged between atoms, while atoms in a covalent
bond are shared.20
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This is the simplest part of a substance that retains all of the properties of that substance and
can exist in a free state.
What is a molecule? 25
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What is do not share
electrons equally? 5
A water molecule is polar because its hydrogen and
oxygen atoms do this.
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The force of attraction between a hydrogen molecule with a partial
positive charge and another atom or molecule with a partial or full negative
charge is referred to as this.
What is a hydrogen bond?
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These are the 4 things that can result from hydrogen
bonding.
What are cohesion, surface tension, adhesion, and capillarity ? 15
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The polarity of water allows it to dissolve other polar substances such as______ but doesn’t allow it to dissolve nonpolar
substances such as____ .
What are sugar and oil?
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Why is ice less dense than water?
What is…ice is less dense because of the structure of ice crystals,
water molecules in ice are bonded in a way that creates large amounts of open space
between the molecules; the open space lattice structure causes ice
to have a low density. 25
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The amount of solute dissolved in a fixed amount of
solution is called this.
What is concentration?
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A solution with a pH of 7 is considered to be
this.
What is neutral?
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A solution in which no more solute can be dissolved is
referred to as this.
What is a saturated solution
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This is the name of the OH− ion
What is the hydroxide ion?
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Chemical substances that neutralize small amounts of either an acid or a base is
called this.
What is a buffer?
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