Multiple Choice
Compared to the energy it takes to separate oxygen and hydrogen from water, the amount of energy released when they recombine is
A) slightly more.
B) slightly less.
C) much more.
D) much less.
E) the same.
Correct Answer:
Verified
Correct Answer:
Verified
Q42: The number of protons in a neutral
Q43: If we doubled the magnifying power of
Q44: Which is the smallest particle?<br>A)molecule<br>B)atom<br>C)proton<br>D)neutron<br>E)quark
Q45: Atoms heavier than helium were at one
Q46: An atomic mass unit (amu)is 1/12 the
Q48: Although solid matter is mostly empty space,
Q49: Which is the lightest particle?<br>A)proton<br>B)electron<br>C)neutron<br>D)all about the
Q50: When oxygen and hydrogen gases combine, the
Q51: Which of these investigators did NOT contribute
Q52: Two protons removed from an oxygen nucleus