here are four sketches of pure substances. each sketch is drawn as if a sample of the substance were under a…
here are four sketches of pure substances. each sketch is drawn as if a sample of the substance were under a microscope so powerful that individual atoms could be seen. decide whether each sketch shows a pure sample of an element or a pure sample of a compound. substance a element compound substance b element compound substance c element compound substance d element compound
Answer
Explanation:
Substance A
- Step1: Analyze the particles The particles in Substance A are all of the same type (same color, same shape).
- Step2: Determine the classification Since all particles are identical and represent single - type atoms, Substance A is an element.
Substance B
- Step1: Analyze the particles The particles in Substance B are all of the same type (same color, same shape).
- Step2: Determine the classification Since all particles are identical and represent single - type atoms, Substance B is an element.
Substance C
- Step1: Analyze the particles The particles in Substance C are composed of two different types of atoms (different colors) chemically combined.
- Step2: Determine the classification Since the particles are made of two or more different atoms bonded together, Substance C is a compound.
Substance D
- Step1: Analyze the particles The particles in Substance D are all of the same type (same color, same shape).
- Step2: Determine the classification Since all particles are identical and represent single - type atoms, Substance D is an element.
Answer:
Substance A: element Substance B: element Substance C: compound Substance D: element