Reaction 1 : magnesium plus hydrochloric acid. Question Was this a chemical or physical reaction? How do you know?

Question

Reaction 1 : magnesium plus hydrochloric acid.  Question Was this a chemical or physical reaction? How do you know? 
Reaction 2: vinegarand baking soda.  Question Was this a chemical or physical reaction? How do you know? Simplify text
Reaction 3: Silver nitrate and sodium chlorine. Question Was this a chemical or physical reaction? How do you know? Simplify text
Write a detailed "IF -THEN" hypothesis statement for ONE of the experiments above.

GPT-4o mini · Answer

### Simplified Reactions: **Reaction 1: Magnesium + Hydrochloric Acid** - **Type of Reaction:** Chemical - **Reason:** New substances are formed (hydrogen gas and magnesium chloride). --- **Reaction 2: Vinegar and Baking Soda** - **Type of Reaction:** Chemical - **Reason:** Gas bubbles (carbon dioxide) are produced, indicating a new substance is created. --- **Reaction 3: Silver Nitrate and Sodium Chloride** - **Type of Reaction:** Chemical - **Reason:** A solid (silver chloride) precipitate forms, indicating a chemical change. --- ### IF-THEN Hypothesis Statement for Reaction 1 (Magnesium + Hydrochloric Acid): **IF** magnesium metal is combined with hydrochloric acid, **THEN** a chemical reaction will occur, resulting in the production of hydrogen gas and magnesium chloride, which can be observed through the formation of bubbles and heat release.