Question

directions: the experiment tests the physical properties of two unknown substances, y and z. use the experiment to answer any questions that follow. passage 2175 which table correctly records the unknown substances in this experiment? a. substance y: malleable, poor conductivity, metal; substance z: brittle, good conductivity, nonmetal b. substance y: malleable, good conductivity, metal; substance z: brittle, poor conductivity, nonmetal

Explanation:

Step1: Recall metal - non - metal properties

Metals are generally malleable and good conductors of electricity. Non - metals are usually brittle and poor conductors.

Step2: Analyze table options

In option B, substance Y is described as a metal with good conductivity and malleability, and substance Z is described as a non - metal with poor conductivity and brittleness, which is consistent with the general physical properties of metals and non - metals. In option A, the conductivity properties of metal and non - metal are wrongly assigned.

Answer:

B. Substance Y: Metal, Good conductivity, Malleable; Substance Z: Nonmetal, Poor conductivity, Brittle