Iron has a density of 7.874 g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?
A) 7.629 g
B) 60.00 g
C) 94.48 g
D) 472.4 g
D
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Which of these is considered to be a less-developed country?
A. Nigeria B. United States C. Japan D. Germany
Which of the following is the main form of intermolecular attractions among water molecules?
A. induced dipole-induced dipole B. polar-induced polar C. covalent bonding D. ion-dipole E. hydrogen bonding
The upper groundwater zone above the water table where pore spaces may be filled with air as well as water is termed the zone of:
a. Aeration b. Artesian water c. Precipitation d. Saturation
Why are rocks rich in magnesium and iron called mafic?
A) Mafic is the opposite of felsic. B) Ferric is the same as mafic, which means rich in magnesium and iron. C) Mafic comes from magnesium and ferric. D) Mafic is the Latin word that means rich is magnesium and iron.