Multiple Choice
If an astronaut landed on a planet made of antimatter,there would be an explosion and
A) the planet would annihilate.
B) an amount of planet matter equal to that of the astronaut would annihilate.
C) the astronaut would annihilate.
D) the astronaut and an equal amount of the planet would both annihilate.
Correct Answer:

Verified
Correct Answer:
Verified
Q27: A molecule has<br>A)mass.<br>B)structure.<br>C)energy.<br>D)all of these<br>E)none of these
Q28: Brownian motion has to do with the<br>A)size
Q29: When carbon and oxygen atoms combine,energy is<br>A)taken
Q31: How many different elements are in a
Q33: What makes an element distinct?<br>A)the number of
Q34: Atoms heavier than helium were made by<br>A)photosynthesis.<br>B)thermonuclear
Q36: Which of these statements is true?<br>A)A molecule
Q37: If one neutron is added to a
Q43: If we doubled the magnifying power of
Q64: Which of these atoms has the greatest