New Mexico NM-ASR Science Grade 8 Practice Questions - New Mexico Assessment Of Science Readiness - Science, Grade 8 Exam

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A student designs a model in which a synthetic fabric must be recycled into new fibers with properties similar to cotton. Which claim best supports using a molecular-level model to choose the synthetic material?

The arrangement and types of atoms in a polymer determine its observable properties, so the model can predict flexibility and strength The model can show only the color of the material, which determines all properties Molecular models cannot predict any observable properties of a material Only the mass of the sample determines the properties of the synthetic fiber

Correct Answer:

The arrangement and types of atoms in a polymer determine its observable properties, so the model can predict flexibility and strength

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