How Many Molecules of CO₂ Are Present in 20

question 15

Multiple Choice

How many molecules of CO₂ are present in 20.0 g of CO₂?

• A) 1.46×10 ^{- 21} molecules
• B) 6.84×10²⁰ molecules
• C) 2.74×10²³ molecules
• D) 6.02×10²³ molecules
• E) 1.32×10²⁴ molecules

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Definitions:

Conditioned Response

A learned reaction or behavior in response to a conditioned stimulus.

Red Light

A red light is commonly used in traffic signals to indicate a command to stop, or it can also refer to a wavelength of light perceived as red.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, evokes a conditioned response.

Neutral Stimulus

An object or event that initially produces no specific response other than focusing attention, until it is associated with a significant event.