What is the maximum number of valence electrons in an atom?
A. four
B. six
C. eight
D. twelve
Answer: C
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Once the trench is dug, the trench width at the top of the pipe and trench depth determines the _____.
a. trench configuration b. depth of the grade stakes c. load that the pipe has to support d. trench modification
How many pound-feet of torque are developed if a wrench 13.75 inches long is rotated with 23 pounds of force?
Fill in the blank(s) with the appropriate word(s).
Calculate the amount of heat required to change 5 lb of 32°F ice to water
A) 5 lb × 32°F × 0.5 BTU/lb = 80 BTU B) 5 lb × 144 BTU/lb = 720 BTU C) The amount of heat required cannot be calculated without knowing the ending temperature of the water. D) No extra heat is required because the ice is already at the melting temperature.
According to the Centers for Disease Control, there is no single test that can reliably diagnose AIDS.