Across
- 2. A potential source of harm or danger, especially in a laboratory setting. Hazards could include chemicals that are toxic, corrosive, or flammable.
- 5. A process where reactants are transformed into products, involving the breaking and forming of chemical bonds. Examples include combustion, oxidation, and neutralization.
- 6. A solid that forms from a solution during a chemical reaction, often when two liquids react and form an insoluble substance.
- 9. A solution of calcium hydroxide in water, used to test for carbon dioxide. When CO₂ is present, limewater turns cloudy due to the formation of calcium carbonate.
- 10. The substances formed as a result of a chemical reaction. They are found on the right side of a chemical equation.
Down
- 1. A way of describing a chemical reaction using words instead of chemical symbols. For example, "hydrogen + oxygen → water."
- 3. The starting materials in a chemical reaction. Reactants are on the left side of a chemical equation and undergo changes to form products.
- 4. A simplified representation used to explain complex chemical processes. It could be physical (like molecular ballandstick models) or conceptual (like diagrams showing reactions).
- 7. A substance formed when two or more elements chemically bond together in fixed proportions. Water (H₂O) is an example of a compound made from hydrogen and oxygen.
- 8. The likelihood that a hazard will actually cause harm. In a lab, risk is assessed based on both the hazard and the precautions in place.