Question

1. calcium hydroxide ca(oh)₂ meets the definition of which of the following? homogeneous mixture heterogeneous mixture compound element

Explanation:

Calcium hydroxide ($Ca(OH)_2$) is made up of calcium (Ca), oxygen (O), and hydrogen (H) atoms chemically - bonded together. A compound is a substance composed of two or more different elements chemically combined in a fixed ratio. A homogeneous mixture is a mixture with uniform composition throughout, a heterogeneous mixture has a non - uniform composition, and an element is a pure substance made of only one type of atom. Since $Ca(OH)_2$ is composed of multiple elements chemically bonded, it is a compound.

Answer:

O compound