---->Chemical Properties:

Question

Rock: LIMESTONE

Things you might include: What is its chemical formula? Does it react to hydrochloric acid, HCl , by forming bubbles in HCl? You also might include if the rock or mineral is magnetic.
You may use bullet points or complete sentences.
If you use complete sentences, remember to use capitalization and punctuation, good grammar and spelling, etc.
- **Chemical Formula:**
- **Reactivity with Hydrochloric Acid (HCl):**
- **Magnetic Properties:**
- **Electrical Conductivity:**
- **Thermal Stability:**
- **Lubricating Properties:**

Answer 1

Chemical Properties of Limestone:

• Chemical Formula: The chemical formula for limestone is primarily \( \text{CaCO}_3 \) (calcium carbonate).

• Reactivity with Hydrochloric Acid (HCl): Limestone reacts with hydrochloric acid, producing carbon dioxide gas, which can be seen as bubbles forming in the solution. This reaction is a characteristic feature of calcium carbonate.

• Magnetic Properties: Limestone is generally not magnetic; it does not exhibit any magnetic properties under normal conditions.

• Electrical Conductivity: Limestone is a poor conductor of electricity, as it is mainly composed of non-metallic minerals.

• Thermal Stability: Limestone has good thermal stability; it decomposes when heated above approximately 825 °C (1517 °F), producing quicklime (calcium oxide) and releasing carbon dioxide gas.

• Lubricating Properties: Limestone does not possess any lubricating properties; it is primarily a sedimentary rock used in construction and as a raw material in various industrial processes.