In part C of this experiment, copper (II) oxide is collected using vacuum filtration. The liquid that is NOT collected is called the

Question

BlackTom AI · Accepted Answer

This question asks you to identify the name of the liquid that remains uncollected during vacuum filtration of copper(II) oxide in part C.
Option 1: 'precipitate' — In filtration, the solid that forms and is collected on the filter is called the precipitate. The liquid portion is not the precipitate, so this is not the correct term for the liquid that passes through or is left behind.
Option 2: 'filtrate' — The filtrate is the liquid that passes through the filter or the liquid that is not retained by the filter. Since copper(II) oxide is the solid being collected on the filter, the liquid that is not collected corresponds to the filtrate. This aligns with standard filtration terminology.
Option 3: 'copper' — Copper refers to the element or the solid copper compounds that may be present, not the liquid component left behind. It does not describe the liquid in this filtration context.
Option 4: 'apparatus' — This term describes the equipment used (the funnel, filter paper, vacuum setup), not the liquid component involved in the separation. It is unrelated to the description of the liquid.
In summary, the term that correctly names the liquid not collected during vacuum filtration is the filtrate, while the other terms describe the solid product, the equipment, or misidentify the liquid component.

In part C of this experiment, copper (II) oxide is collected using vacuum filtration. The liquid that is NOT collected is called the单项选择题

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