The label on a container of a drain cleaner says: Harmful or fatal if swallowed. Causes severe irritation to eyes, skin, mouth and clothing. Which type of hazard does the drain cleaner pose?

The compound sucrose has a chemical formula of C12H22O11. How many elements are in one molecule of sucrose?

Which of the following is a compound?

Mineral oil is less dense than water. Mercury, a liquid metal, is more dense than water. If mineral oil, mercury, and water are mixed together, which liquid would float to the top?

A student pours two different solutions into a glass beaker. Which of the following would indicate that a chemical reaction took place between the two solutions

While working on an activity to investigate chemical reactions, a student mixes two clear liquids in a beaker. When the two liquids mix, the result is a clear liquid and an orange precipitate. Which best describes the reactants that students worked w

Which of the following statements about dilution as an approach to handling toxic waste is TRUE?

Which one of the following tests could help you narrow down the identity of a substance?

Why is ammonia used to test for copper in a solution? Choose the best answer.

Which of the following is a chemical property of substances? the substances

Which of the following is a list of physical properties?

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