Q: Do metals tend to gain electrons or lose electrons in chemical reactions? Choices: - develop electrons - same number of electrons - gain electrons - lose electrons A:
lose electrons
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Q: Combining nonpolar olive oil and polar vinegar yields what type of mixture? Choices: - homogeneous - omnigeneous - amorphous - heterogeneous A:
heterogeneous
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Q: What enzyme is found in the small intestine catalyzes the hydrolysis of lactose? Choices: - elastases - lipase - amylase - lactase A:
lactase
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Q: A protective coating of zinc to prevent corrosion is applied to steel and other metals labeled what? Choices: - polarized - battered - corroded - galvanized A:
galvanized
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