Chem 101 Midterm Ivy Tech Questions With Complete Solutions
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Course
NU1426
Institution
NU1426
Chem 101 Midterm Ivy Tech Questions With Complete Solutions.
Which of the following is considered a hypothesis (as opposed to an observation)?
Which of the following would be considered a theory?
Which of the statements below is NOT part of the scientific method?
Which statement about a hypothe...
Chem 101 Midterm Ivy Tech Questions With
Complete Solutions.
1). Which of the following is considered a hypothesis (as opposed to an observation)?
Ans: Birds can fly because they have hollow bones
2). Which of the following would be considered a theory?
Ans: Helium balloons float because helium is less dense than air.
3). Which of the statements below is not part of the scientific method?
Ans: All of the above steps are part of the scientific method.
4). Which statement about a hypothesis is true?
Ans: All of the above statements are true.
5). Who discovered the law of conservation of mass?
Ans: Antoine Lavoisier
6). The distance between two hydrogen atoms in a molecule of water 0.0000000000172 m.
express this distance in scientific notation.
Ans: 1.72 x 10^-10 m
7). Which of the following would not be considered a correct conversion factor?
Ans: 1 pair of shoes = 1 shoe
8). In the number 48.93, which digit is estimated?
Ans: 3
The correct number of significant figures in the number 0.027090 is:
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, 9).
Ans: 5
10). The base si unit for temperature is:
Ans: Kelvin
11). The correct scientific notation for the number 0.00050210 is:
Ans: 5.0210 x 10^-4
12). How many inches are in 25.8 cm?
Ans: 10.2 in
13). Which of the following statements is not part of the rules for determining significant
figures?
Ans: Non-zero digits at the end of a number are not significant.
14). The correct number for significant figures in the number 1.250100 is:
Ans: 7
15). How many milliliters are in 17.5 l?
Ans: 1.75 x 10^4 mL
16). Which state of matter has atomic spacing that is close together and definite shape?
Ans: Solid
17). Which state of matter has atomic spacing that is far apart and definite shape
Ans: Liquid
18). What is the calue of 783 k in units of c
Ans: 510 C
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