Which of the Following Is a Pure Substance

question 35

Multiple Choice

Which of the following is a pure substance?

• A) blood
• B) block of aluminum
• C) air
• D) orange juice

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Definitions:

Hypokalemia

A medical condition characterized by lower than normal levels of potassium in the bloodstream.

ECG Changes

Alterations in the electrocardiogram, indicating abnormalities in the electrical activity of the heart, which can signal various cardiac conditions.

Dehydration

A state where the body loses more fluids than it takes in, leading to a deficiency in the amount of water and electrolytes, which can affect bodily functions.

Water Volume

The quantity of water present in a particular system, body, or area, often related to hydration status in medical contexts.