Which of the following is a weak base?
a. NH3
b. NaOH
c. KOH
d. Ca(OH)2
a
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What is Wein’s displacement law?
What will be an ideal response?
Fill in the blank in the following chemical reaction thatoccurs in the Sun:Deuterium+proton=??+ energy:
a) deuterium-2 b) hydrogen-1 c) helium-3 d) carbon-12 e) helium-4
A baseball is thrown vertically upward and feels no air resistance. As it is rising
A) both its momentum and its mechanical energy are conserved. B) its momentum is not conserved, but its mechanical energy is conserved. C) both its momentum and its kinetic energy are conserved. D) its kinetic energy is conserved, but its momentum is not conserved. E) its gravitational potential energy is not conserved, buts its momentum is conserved.
The S.I. unit used in expressing magnetic field strength is the ________.
Fill in the blank(s) with the appropriate word(s).