Chapter 1 = Chemistry: The Science of Change
Given that 1 inch = 2.54 cm, 1.00 cm^3 is equal to _____.
0.0610 in^3
How many inches are in 382.5 cm? (1 inch = 2.54 cm)
150.6 in
Which of these quantities represents the largest mass?
2.0 x 10^2 cg
Which of the following cannot be separated into simpler substances by chemical means?
element
Which of the following is not an SI base unit?
gram
Which of the following does not have a uniform composition throughout?
heterogeneous mixture
If a liquid contains 60% sugar and 40% water throughout its composition, what is it called?
homogeneous mixture
Which of the following is a tentative explanation for a set of observations?
hypothesis
Which of the following activities is not a part of good science?
indulging in speculation
The SI base unit of mass is _____.
kg
What is the term used for findings that are summarized based on a pattern or trend?
law
What is a unifying principle that explains a body of experimental observations?
theory
Which of the following is a "substance" according to the definition given in your textbook?
water
Convert 500. milliliters to quarts. (1 L = 1.0567 qt)
0.528 qt
The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?
1.34 x 10^-10 m
The SI prefixes milli- and mega- represent, respectively, _____.
10^-3 and 10^6
The SI prefix mega- (M) means
10^6
A dose of medication was prescribed to be 35 microliters. Which of the following expresses that volume in centiliters?
3.5 x 10^-3 cL
The average distance between the Earth and the Moon is 240,000 miles. Express this distance in kilometers. (1 mile = 1609 m)
3.9 x 10^5 km
The average distance between the Earth and the Moon is 240,000 miles. Express this distance in meters (1 mile = 1609 m)
3.9 x 10^8 m
A large pizza has a diameter of 15 inches. Express this diameter in centimeters (1 inch = 2.54 cm)
38 cm
How many milliliters is 0.0055 L?
5.5 mL
The mass of a sample is 550 milligrams. Which of the following expresses that mass in kilograms?
5.5 x 10^-4 kg
How many hertz is 600.11 MHz?
6.0011 x 10^8 Hz
How many micrograms are in 65.3 kg?
6.53 x 10^10 mg
How many cubic inches are in 1.00 liter (1 inches = 2.54 cm)
61.0 in^3