I think the answer is <span>B. The sun's gravitational pull on Planet A is equal to its gravitational pull on Planet B because distance does not affect gravity.
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fourth period
The third period is similar to the second, except the 3s and 3p sublevels are being filled. Because the 3d sublevel does not fill until after the 4s sublevel, the fourth period contains 18 elements, due to the 10 additional electrons that can be accommodated by the 3d orbitals.
Answer:
Newton's third law of motion states that every action, there is an equal and opposite reaction force and that forces come in pairs
Aluminium Hydroxide on decomposition produces Al₂O₃ and Water vapors.
<span> 2 Al(OH)</span>₃ → Al₂O₃ + 3 H₂O
According to equation at STP,
67.2 L (3 moles) of H₂O is produced by = 78 g of Al(OH)₃
So,
65.0 L of H₂O will be produced by = X g of Al(OH)₃
Solving for X,
X = (65.0 L × 78 g) ÷ 67.2 L
X =
75.44 g of Al(OH)₂Result: 75.44 g of Al(OH)₂ is needed to decompose in order to produce 65.0 L of water at STP in stoichiometry
<span>As the Sun sets, the moon rises with the tide that faces the
Earth fully exposed to sunlight. The moon has phases because of its orbit to
Earth which causes the portion we see illuminated to change. The new moon
occurs when the moon is positioned
between the earth and the sun. at full moon and third quarter or called
as the half moon, it happens when the moon is at a 90 degree angle with respect
to the earth and the sun. crescent refers to the moon that is less than half
illuminated by the sun. gibbous refers to more than half illuminated by the
sun. waxing means growing or expanding in illumination and waning means
shrinking or decreasing in illumination.</span>
