Which of the Following Is an Example of a Chemical

question 7

Multiple Choice

Which of the following is an example of a chemical change?

• A)gasoline being used in the engine of a car producing exhaust
• B)water freezing into ice crystals
• C)aftershave or perfume on your skin generating a smell
• D)a piece of metal expanding when heated,but returning to original size when cooled
• E)breaking a glass window

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Definitions:

Spleen

An organ involved in filtering blood, storing red blood cells, and playing a role in immunity as part of the lymphatic system.

Thyroid Gland

An endocrine gland located in the neck that produces hormones regulating growth, development, and metabolic rate.

Immune Response

The body's defensive reaction to foreign substances or pathogens, involving recognition, attack, and elimination.

Specificity

The ability of a test or method to correctly identify those without the condition or trait being tested for, minimizing false positives.