Where Should an Astronomer Look for a Supermassive Black Hole

question 36

Multiple Choice

Where should an astronomer look for a supermassive black hole?

• A) in the center of a galaxy
• B) at the center of the universe
• C) orbiting a normal star in the Milky Way Galaxy
• D) at the center of a supernova remnant

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Definitions:

Chemiluminescence

The emission of light (luminescence) as the result of a chemical reaction without the need for external light sources.

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid, or gas) as the reactants in a chemical reaction, promoting the reaction without being consumed.

Zero-order Reaction

A chemical reaction where the speed at which it occurs is unaffected by the amount of reactant(s) present.

Reactant Concentration

The amount of reactants present in a given volume of solution at the start of a chemical reaction, influencing the reaction rate.