Chem 101 Midterm Ivy Tech Questions With Complete Solutions.
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Course
Chem 101 \\\\
Institution
Chem 101 \\\\
Chem 101 Midterm Ivy Tech Questions With
Complete Solutions.
Which of the following is considered a hypothesis (as opposed to an observation)? - -
Birds can fly because they have hollow bones
Which of the following would be considered a theory? - -Helium balloons float
because helium is less d...
Chem 101 Midterm Ivy Tech Questions With
Complete Solutions.
Which of the following is considered a hypothesis (as opposed to an observation)? - -
Birds can fly because they have hollow bones
Which of the following would be considered a theory? - -Helium balloons float
because helium is less dense than air.
Which of the statements below is NOT part of the scientific method? - -All of the
above steps are part of the scientific method.
Which statement about a hypothesis is TRUE? - -All of the above statements are
true.
Who discovered the law of conservation of mass? - -Antoine Lavoisier
The distance between two hydrogen atoms in a molecule of water 0.0000000000172 m.
Express this distance in scientific notation. - -1.72 x 10^-10 m
Which of the following would NOT be considered a correct conversion factor? - -1
pair of shoes = 1 shoe
In the number 48.93, which digit is estimated? - -3
The correct number of significant figures in the number 0.027090 is: - -5
The base SI unit for temperature is: - -Kelvin
The correct scientific notation for the number 0.00050210 is: - -5.0210 x 10^-4
How many inches are in 25.8 cm? - -10.2 in
Which of the following statements is NOT part of the rules for determining significant
figures? - -Non-zero digits at the end of a number are not significant.
The correct number for significant figures in the number 1.250100 is: - -7
How many milliliters are in 17.5 L? - -1.75 x 10^4 mL
, Chem 101 Midterm Ivy Tech Questions With
Complete Solutions.
Which state of matter has atomic spacing that is close together and definite shape? -
-Solid
Which state of matter has atomic spacing that is far apart and definite shape - -
Liquid
What is the calue of 783 K in units of C - -510 C
In order, what is the freezing point, room temperature and boiling point of water according
to the Celsius scale? - -32-75-212
Which state of matter has indefinite shape and is compressible? - -Gas
How would you classify raisin bran? - -mixture- heterogeneous
Which type of energy is associated with the burning of gasoline? - -Chemical
Which of the following is a heterogeneous mixture? - -Raisin bran
Which of the following statements about compounds is TRUE? - -A substance
composed of two or more elements is fixed, definite proportions.
Which among the following statements is FALSE? - -None of the above
Cr is a member of which family? - -none of the above
How many neutrons are present in C-14? - -8
An atom containing 7 protons, 8 neutrons, and 7 electrons - -Is charge-neutral
If an isotope of an element has 27 neutrons and a mass number of 52, how many electrons
must it have? - -25
Group 7A elements are called: - -Halogens
What is the correct chemical symbol for tin? - -Sn
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