Jeopardy first semester review (Averkamp p
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Transcript of Jeopardy first semester review (Averkamp p
Nature of Science
Metric Measurement
Classifying Matter
Atomic Structure
Chemical Bonding
Chemical Reactions
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Final Jeopardy
Electron Dot Diagrams
Final Jeopardy
answer
How many dots would be in Phosphorous ‘s dot diagram?
$200
A hypothesis
What is an educated guess or testable prediction called?
$400Matter & Energy
What is studied in Physical Science?
B.Plants
C.Matter & energy
D.Earth & space science
$600
Independent variable
What is the name of the one variable that is changed and
tested in an experiment?
$800
Precision
What is the term for how close repeated measurements
are to each other when conducting trials?
$1000
Time on the timer is what was measured.
What was the dependent variable when you tested
either weight or ramp height of your car?
$200
60 – 50mL = 10 mL of space would be taken up by the object.
What would be the volume of an object that when placed in
water makes the water go from 50 mL to 60 mL?
$400
“King Henry Doesn’t Bang doors christmas morning.”
What is the seven word saying to help you remember
the order of the metric prefixes and base units?
$600
5.0 x 10 -5
What is 0.00005 written in scientific notation?
$800
Hecto to centi is 4 steps RIGHT on the prefix chart so shift the decimal 4 steps right. 25 becomes 2500 cg.
Use a metric prefix chart and convert 25 hg to cg.
$1000
65.91 kg
Solve the following problem – convert 145 pounds into kg
(1 kg = 2.2 lbs)
$200
Heterogeneous
What is an unevenly mixed mixture called?
$400
Compound
Under what category of matter is salt classified?
$600
Physical Change – it is only a phase change.
Is gasoline evaporating a physical or chemical change?
How can you tell?
$800Un-pure mixtures can be physically separated while substances such as elements and compounds cannot.
What is the difference between un-pure mixtures
and pure substances?
$1000Colloids are NOT clear and are considered heterogeneous while solutions are clear and
are considered homogeneous mixtures.
What is the difference between a colloid and a
solution?
$200
The nucleus.
What is the center of an atom called?
$400
The neutron
Which subatomic particle has the same mass as a proton?
$600
Protons plus neutrons added together.
How is the mass number of an element determined?
$800Atomic number is number of PROTONS.
Mass number is the number of PROTONS + NEUTRONS
What is the difference between an element’s
ATOMIC NUMBER and MASS NUMBER?
$1000
11 Protons, 11 Electrons and 12 Neutrons (23-11 for neutrons.)
If sodium (Na) has a atomic number of 11 and a mass number of
23, calculate the its number of protons, electrons and neutrons.
$200
They have a FULL outer electron level.
Why are the noble gases (group 18) the most
chemically stable elements?
$400
The outer level electrons
What do the dots represent in an electron dot diagram?
$600
+3
What will be the charge of an atom that loses 3 electrons?
$800
MgCl2
If magnesium has a charge of +2 and chlorine has a charge of -1, what will be the ionic formula for this compound?
$1000
Ions are charged particles while isotopes are elements that can have masses of
different sizes (because of a difference in neutrons.)
What is the difference between an ION and an
ISOTOPE?
$200
Exothermic
What kind of reaction is present if heat is given off?
$400
Decomposition
What kind of reaction is shown?
2H2O2 ----- 2H2O + O2
$600A single replacement reaction starts with an
element and compound while a double replacement reaction starts with two
compounds.
How can you tell the difference between a single versus a double replacement
reaction?
$800
1. Particle size 2. Concentration 3.Temperature 4. Catalyst
List at least three of the four factors that can change the rate or speed of a chemical
reaction.
1000
What would be the coefficients for this reaction?
__B + __F2 ----- __BF3
2 B + 3 F2 ------ 2 BF3
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