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WorksheetsAS Chem Final Terms Review Part 1
Total questions: 40
Worksheet time: 31mins
_____________ __________________ is looking at the units that you need to solve the problem then setting up your unit conversions to make it happen.
(a)
_______________ is the measure of how close a measurement comes to the actual true value of whatever is measured
Accuracy
Precision
Accepted value
Experimental value
_______________ is a measure of how close a series of measurements are to one another.
Accuracy
Precision
Accepted value
Experimental value
_______________ is the known correct value.
Accuracy
Precision
Accepted value
Experimental value
_______________ is the value measured in a lab.
Accuracy
Precision
Accepted value
Experimental value
To the correct number of significant digits, what is the answer to the below math problem?
5.845 x 2.5
15
14.6
14.61
14.613
14.6125
To the correct number of significant digits, what is the answer to the below math problem?
5.845 + 2.5
8
8.3
8.35
8.345
For this image, what is the reading to the correct number of significant digits? Assume that the 10 and 20 indicate mL. (Write only the number; mL is not needed.)
23.9
24.0
24
How many grams is 15.0 mL of water? Just write the number to the correct number of significant digits
(a)
What is the volume (mL) of 4.5 g of gold (density = 19.3 g/mL). Just need the number to the right number of significant digits.
(a)
Which of the following represents the s orbital?
Which of the following represents the d orbital?
Which of the following represents the p orbital?
Which of the following represents the f orbital?
Which of the following is an example of a substance?
table sugar
pizza
steel
air
Which of the following molecules has a triple bond?
carbon dioxide
carbon monoxide
carbon tetrachloride
hydrogen peroxide
What causes the shielding effect to remain constant across a period?
The atomic radius increases.
Electrons are added to the same principal energy level.
The charge on the nucleus is constant
Electrons are added to different principal energy levels.
One characteristic of a scientific theory is that ____.
it can be proved
it cannot be modified
it can never be proved
it summarizes a set of observations
What type of hybridization occurs in the orbitals of carbon in a carbon dioxide molecule?
(a)
Which scientist is associated with the gold foil experiment?
(a)
Who predicted that all matter can behave as waves as well as particles?
Max Planck
Erwin Schrodinger
Louis de Broglie
Albert Einstein
What is the metric system prefix for the quantity 0.000 000 001?
mille-
centi-
micro-
nano-
pico-
An example of an intensive property of matter is ____.
height
mass
hardness
volume
Which of the following (is) are ionically bonded?
sodium chloride
carbon tetrachloride
lithium oxide
ammonium sulfide
What is the shape of the methane molecule?
(a)
As the density of a substance decrease, the volume of a given mass of that substance (a) .
What is the strongest of the intermolecular forces?
van der Wall forces
dipole-dipole interaction
London dispersion forces
hydrogen bonds
What is the weakest of the intermolecular forces?
van der Wall forces
dipole-dipole interaction
London dispersion forces
hydrogen bonds
The following are the statements form Dalton's model of the atom. Which, if any of the following, have changed according to the current model of the atom?
none have changed
The atom is the smallest part of an element.
All atoms of an element are identical.
Atoms of different elements are different.
Chemical reactions do not change atoms.
With what experiment is JJ Thomson associated? No need to "experiment" or "lab" after it
(a)
Milikan is associated with the oil-drop experiment. What did he find at the conclusion of the experiment?
the mass of the electron
the mass-to-charge ratio of the electron
the mass of the proton
the existance of the neutron
A metallic bond is a bond between ____.
the ions of two different nonmetals
a cation and an anion
valence electrons and cations
the ions of two different metals
Covalently-bonded compounds form molecules and ionically-bonded compounds form _________ ___________ (two words).
(a)
The variable that is changed during an experiment is called the (a) variable.
The shape of the boron trifluoride molecule is ___________ _____________.
(a)
The angle between bonds on a tetrehedal molecule is (a) degrees.
Hydrogen bonds occur when hydrogen is bonded to which three elements (list from lowest to highest atomic mass with a space -- no commas -- between each).
(a)
A process in which a liquid is boiled to produce a vapor that is condensed again into a liquid is (a) .
The gaseous state of substance that is a liquid or solid at room temperature is a(n) (a) .
(a) chemistry is the brand of chemistry concerned with the mechanism, rate, and energy transfer that occurs when matter undergoes a change.
