When the Geocentric Model of the Solar System Did Not

question 30

Multiple Choice

When the geocentric model of the solar system did not match the observed positions of the planets,

• A) Tycho Brahe made measurements of higher accuracy and showed the geocentric model was correct.
• B) Ptolemy added epicycles to the geocentric model to match the observed data.
• C) Galileo argued that the Sun revolved around the Earth.
• D) Kepler was inspired to create the theory of gravity.

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Definitions:

Equilibrium

Equilibrium is a condition in a chemical reaction when the rate of the forward reaction equals the rate of the reverse reaction, leading to a constant concentration of reactants and products.

Tautomers

Isomers of organic compounds that differ in the position of protons and electrons but have the same molecular formula, often interconverting in a chemical equilibrium.

Enols

Organic compounds containing a hydroxyl group directly bonded to a carbon atom that is double-bonded to another carbon atom.

Ketones

Ketones are organic compounds characterized by a carbonyl group (C=O) linked to two carbon atoms. They are part of many biological and synthetic substances.