1pt

Question

Four students are asked to determine whether the following substances are mixtures or pure substances: soil, gold metal, copper wire, and table salt. Their replies are shown in the table.

Which student correctly labeled the substances?

A.
Student L
B.
Student M
C.
Student N
D.
Student O

Answer 1

To determine which student correctly labeled the substances as mixtures or pure substances, we need to classify each of the given substances:

1. Soil - A mixture; it contains various organic and inorganic materials.
2. Gold metal - A pure substance; it is a single element.
3. Copper wire - A pure substance; made of copper, which is also a single element.
4. Table salt (sodium chloride, NaCl) - A pure substance; it is a compound made up of sodium and chlorine in a fixed ratio.

Now, let's summarize the classification:

• Soil: Mixture
• Gold metal: Pure substance
• Copper wire: Pure substance
• Table salt: Pure substance

Since I do not have access to the replies of students L, M, N, and O, I cannot definitively say which student labeled them correctly without the respective answers listed in the table. Please provide the labeling from the students, and I can help determine which student is correct.