LEAP 2025 Science Grade 8 Practice Questions - LEAP 2025 Science - Grade 8 Exam

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Synthetic polymers, such as polyethylene plastic, are composed of microscopic chemical structures that can best be modeled as:

Isolated single atoms floating independently without chemical bonds Unbonded mixtures of liquid water and metallic elements Long repeating chains of smaller subunit molecules called monomers Simple three-atom gaseous compounds arranged in random clusters

Correct Answer:

Long repeating chains of smaller subunit molecules called monomers

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