The atomic number is equal to the number of ____.
A. atoms in a molecule
B. protons in an atom
C. neutrons in a molecule
D. electrons in an atom
E. protons, electrons, and neutrons in an atom
Answer: B
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Despite the various attempts of land and ocean drilling, there has been no success in reaching the
interior of the Earth. Indicate whether the statement is true or false.
How must the density of oceanic lithosphere compare to the density of asthenosphere in order for the subduction of oceanic plates to occur?
Give a complete answer and explain your reasoning. [Hint: note that oceanic lithosphere is the oceanic crust plus the immediate lithospheric mantle below it.] What will be an ideal response?
Nylon-66 is formed by the reaction between which of the following?
A) H2N(CH2)4NH2 + HOOC(CH2)6COOH B) H2N(CH2)4NH2 + HOOC(CH2)4COOH C) H2N(CH2)6NH2 + HOOC(CH4)6COOH D) H2N(CH2)6NH2 + HOOC(CH2)4COOH
The conversion of solar to chemical energy in photosynthesis occurs when energy from a(n) _______ is transferred to a(n) _______.
Fill in the blank(s) with the appropriate word(s).