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Evgen [1.6K]
3 years ago
12

"identify the part of the atom that most determines the chemical reactivity of the atom"

Chemistry
1 answer:
jeka943 years ago
8 0
Mostly the electrons will determine the reactivity
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A basketball player jumps straight up to dunk a basketball. The basketball player's speed increases as she returns to the
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Options :

The upward force is greater than the downward force.

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Answer:

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Explanation:

When the player jumps to dunk a basket ball, it requires an upward force exerted on the person due to the push by the person to jump, after dunking the basket ball, the player attains maximum height, where his final velocity becomes zero and his direction changes (from upward to downward), at this point his velocity increases due to the additional force exerted on the player due to the Earth's Gravitational pull - which is a downward force which acts on an object).

Hence, it could be concluded that the increase in speed of the basketball player as she returns to the ground means that the downward force is greater than the upward force acting on the player.

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<u>If an earthworm is exposed to dry conditions, then it will retreat to a moist place because its skin needs to stay moist for the earthworm to survive.</u>

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Since the mass of MgO is not given in the question, the correct answer choice cannot be given.  However, proceeding witht eh above formula will enable you to find the correct number of moles given the mass of MgO.
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