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General Chemistry

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Patrick

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New to chemistry? Atoms, elements, and reactions are broken down into simple steps to build a strong foundation for success in class and labs.

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Learn topics such as nutrition, physical activity, mental health, stress management and healthy lifestyle choices.

Personal Health

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Learn how medical terms are built and what they mean by breaking them into simple parts. This course helps you understand and use the language of healthcare with confidence.

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From logic and problem solving to voting systems, personal finance, and statistics, liberal arts math topics are explained step-by-step to build confidence with real-world mathematical thinking and strong preparation for quizzes and exams.

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Master the fundamentals of algebra as you solve equations, analyze patterns, and work with mathematical relationships through guided, step-by-step instruction.

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A 135 mL sample of butane gas is collected over water at a temperature of 28 °C and pressure of 742 torr. Calculate the number of moles of butane in the collected sample.