The formula mass of water, H2O, is
a. 18 u.
b. 9 u.
c. 10 u.
d. 17 u.
[Ques. 2] S seismic waves can travel only through ______________ material.
Fill in the blank(s) with correct word
[Ques. 3] The formula mass of calcium hydroxide, Ca(OH)2, is
a. 74.1 u.
b. 38.1 u.
c. 57.1 u.
d. 58.1 u.
[Ques. 4] Secondary seismic waves travel ______________ (slower or faster?) than primary waves in solids.
Fill in the blank(s) with correct word
[Ques. 5] What is the formula mass of ammonium phosphide, (NH4)3P?
a. 85.0 u
b. 49.0 u
c. 48.0 u
d. 57.0 u
[Ques. 6] Transverse seismic body waves are known by the letter ______________.
Fill in the blank(s) with correct word
[Ques. 7] An element that tends to gain electrons during chemical reactions is probably
a. a semimetal.
b. a nonmetal.
c. an actinide.
d. a metal.
[Ques. 8] Longitudinal seismic body waves are known by the letter ______________.
Fill in the blank(s) with correct word
[Ques. 9] A substance of unknown composition is heated in a sealed container. As a result, the mass of the container and its contents
a. increases.
b. decreases.
c. remains the same.
d. Any of these could occur.
[Ques. 10] Seismic waves that travel through Earth are called ______________ waves.
Fill in the blank(s) with correct word
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