Best answer: the classification is not correctly asked. however a)gold coin is an alloy as it contains some copper and you may call it a solution. b)it is a solution c) a wood plank cant be termed as a solution nor a mixture as the texture of wood is of complex organic compound nature. I would imagine that wood would be considered a "pure" substance, compared to a mixture. trees (wood) grow using a mixture of things like water and sun, but this is all up to nature.. 8. classify each of the following as a pure substance, a solution, or a heterogeneous mixture: a. a gold coin b. a cup of coffee c. a wood plank 9. give 4 examples (not from other questions/problems) illustrating each of the following terms: a. homogeneous mixture b. heterogeneous mixture c. compound d. element e. physical change f. chemical.
Learn heterogenous mixture homogenous or pure with free interactive flashcards. choose from 500 different sets of heterogenous mixture homogenous or pure flashcards on quizlet.. 1. classify each as a pure substance, a solution, or heterogenous mixture: a gold coin, a cup of coffee, a wood plank what ambiguities are there in answering part a from the descriptions given? 2.two students determine the percentage of lead in a sample as a laboratory exercise. the true percentage is 22.52 %.. Solution: classify each of the following as a pure substance, a solution, or a heterogeneous mixture:a wood plank. problem. classify each of the following as a pure substance, a solution, or a heterogeneous mixture: a wood plank. next. practice problems..