A 459 G Sample of a Metal Is Heated to 95

question 35

Multiple Choice

A 45.9 g sample of a metal is heated to 95.2°C and then placed in a calorimeter containing 120.0 g of water (c = 4.18 J/g°C) at 21.6°C.The final temperature of the water is 24.5°C.Which metal was used?

• A)Aluminum (c = 0.89 J/g°C)
• B)Iron (c = 0.45 J/g°C)
• C)Copper (c = 0.20 J/g°C)
• D)Lead (c = 0.14 J/g°C)
• E)none of these

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Definitions:

Neurons

Basic working units of the brain, specialized cells conducting nerve impulses for communication between different parts of the body.

Structural Support

The elements or components in construction or architecture that offer the necessary strength and stability to a building or structure.

Presynaptic Neuron

A neuron that sends a signal to a neighboring neuron across a synapse, typically releasing neurotransmitters.

Neurotransmitter

Chemicals released by neurons that transmit signals across a synapse from one neuron to another, playing key roles in shaping everyday functions and behaviors.