Question

here are four sketches of substances. each sketch is drawn as if a sample of the substance were under a microscope so powerful that individual atoms seen.
decide whether each sketch shows a sample of an element, a compound, or a mixture.
substance x
element
compound
mixture
substance y
element
compound
mixture
substance z
element
compound
mixture
substance t
element
compound
mixture

Explanation:

• Substance X: All particles are identical molecules made of two different atoms, so it is a compound.
• Substance Y: Contains two distinct types of particles (diatomic red elements and red-green compounds), so it is a mixture.
• Substance Z: Contains two distinct types of particles (red-green compounds and diatomic red elements), so it is a mixture.
• Substance T: All particles are identical diatomic molecules of the same green atom, so it is an element.

Answer:

• Substance X: compound
• Substance Y: mixture
• Substance Z: mixture
• Substance T: element