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2 x 3 = 6
Thus there are 6 atoms of oxygen in this molecule.
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This group is called “noble gases” because they do not react with other elements. This is because they have a full valence shell.
Answer:
C: equal to mg
Explanation:
in free-fall, gravity is always the net force on an object
Answer:
= 4.38 × 10³⁴kgm²/s
Explanation:
Given that,
mass of moon m = 9.5 × 10²²kg
Orbital radius r = 4.28 × 10⁵km
Orbital period T = 28.9days
T = 28.9 × 24 × 60 × 60
= 2,496,960s
Angular momentum of the moon about the planet
L = mvr
L = mr²w
