An Object Placed on an Equal-Arm Balance Requires 12 Kg

question 69

Multiple Choice

An object placed on an equal-arm balance requires 12 kg to balance it.When placed on a spring scale, the scale reads 12 kg.Everything (balance, scale, set of weights and object) is now transported to the Moon where free-fall acceleration is one-sixth that on Earth.The new readings of the balance and spring scale (respectively) are:

• A)12 kg, 12 kg
• B)2 kg, 2 kg
• C)12 kg, 2 kg
• D)2 kg, 12 kg
• E)12 kg, 72 kg

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Definitions:

Reactivity

The tendency of a substance to undergo chemical reaction, either by itself or with other materials, and to release energy.

Compounds

Compounds are chemical substances made up of two or more different chemical elements, bonded together in a fixed proportion by chemical bonds.

Transition State

A high-energy, intermediate state of the reactants during a chemical reaction that leads to the formation of products.

Solvolysis

The chemical process of breaking bonds in a compound by reaction with a solvent.