Which of the following is NOT a physical property that a scientist might use to describe gold?
What are your choices...?
Which of the following is NOT a physical property that a scientist might use to describe gold?
A. Yellowish color
B. shiny metallic luster
C. Dense
D. Valuable
Valuable
To determine which of the given options is NOT a physical property of gold, we first need to understand what physical properties are. Physical properties are characteristics of a substance that can be observed and measured without changing the chemical composition of the substance. These properties help scientists identify and describe different substances.
Now, let's evaluate each option to determine which one is NOT a physical property of gold:
1. Color: Color is a physical property. Gold is well-known for its distinctive yellow color, which is one of its identifying characteristics.
2. Density: Density is a physical property. Gold is a dense metal, meaning it has a high mass per unit volume. Its density is often used to differentiate it from other substances.
3. Melting point: Melting point is a physical property. Gold has a relatively high melting point, around 1,064 degrees Celsius (1,947 degrees Fahrenheit).
4. Reactivity with acids: Reactivity with acids is a chemical property, not a physical property. It involves a change in the chemical composition of the substance. Since the question asks for a NOT physical property, this is the correct answer.
Therefore, the correct answer is "Reactivity with acids."