Chem 101 Ivy Tech Midterm Exam| Questions with Correct Answers
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Course
UNE CHEM
Institution
UNE CHEM
Chem 101 Ivy Tech Midterm Exam| Questions with Correct Answers
Which of the following is considered a hypothesis (as opposed to an observation)? Correct Answer: Birds can fly because they have hollow bones
Which of the following would be considered a theory? Correct Answer: Helium balloons fl...
Chem 101 Ivy Tech Midterm Exam|
Questions with Correct Answers
Which of the following is considered a hypothesis (as opposed to an observation)?
Correct Answer: Birds can fly because they have hollow bones
Which of the following would be considered a theory? Correct Answer: Helium balloons
float because helium is less dense than air.
Which of the statements below is NOT part of the scientific method? Correct Answer: All
of the above steps are part of the scientific method.
Which statement about a hypothesis is TRUE? Correct Answer: All of the above
statements are true.
Who discovered the law of conservation of mass? Correct Answer: Antoine Lavoisier
The distance between two hydrogen atoms in a molecule of water 0.0000000000172 m.
Express this distance in scientific notation. Correct Answer: 1.72 x 10^-10 m
Which of the following would NOT be considered a correct conversion factor? Correct
Answer: 1 pair of shoes = 1 shoe
In the number 48.93, which digit is estimated? Correct Answer: 3
The correct number of significant figures in the number 0.027090 is: Correct Answer: 5
The base SI unit for temperature is: Correct Answer: Kelvin
, The correct scientific notation for the number 0.00050210 is: Correct Answer: 5.0210 x
10^-4
How many inches are in 25.8 cm? Correct Answer: 10.2 in
Which of the following statements is NOT part of the rules for determining significant
figures? Correct Answer: Non-zero digits at the end of a number are not significant.
The correct number for significant figures in the number 1.250100 is: Correct Answer: 7
How many milliliters are in 17.5 L? Correct Answer: 1.75 x 10^4 mL
Which state of matter has atomic spacing that is close together and definite shape?
Correct Answer: Solid
Which state of matter has atomic spacing that is far apart and definite shape Correct
Answer: Liquid
What is the calue of 783 K in units of C Correct Answer: 510 C
In order, what is the freezing point, room temperature and boiling point of water
according to the Celsius scale? Correct Answer: 32-75-212
Which state of matter has indefinite shape and is compressible? Correct Answer: Gas
How would you classify raisin bran? Correct Answer: mixture- heterogeneous
Which type of energy is associated with the burning of gasoline? Correct Answer:
Chemical
Which of the following is a heterogeneous mixture? Correct Answer: Raisin bran
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