1. Rusting of iron: When iron is exposed to oxygen and moisture in the air, it undergoes a chemical reaction called oxidation, resulting in the formation of rust.
2. Combustion: When a substance reacts with oxygen and releases heat and light, it undergoes combustion. For example, when wood is burned, it reacts with oxygen in the air to produce carbon dioxide, water vapor, and ash.
3. Etching of glass: Etching involves the use of chemicals to remove a thin layer of material from the surface of glass. This process relies on the chemical reaction between the glass surface and the etching chemical, which typically includes hydrofluoric acid.
List 3 examples of chemical changes (such as vinegar + baking soda)
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is alcohol and baking soda a chemical change?
No, alcohol and baking soda do not undergo a chemical change when mixed together. Mixing alcohol (e.g., ethanol) and baking soda (sodium bicarbonate) would simply result in a physical mixture without any chemical reactions taking place.
what can you mix with baking soda to give you a chemical change?
You can mix baking soda (sodium bicarbonate) with several substances to observe chemical changes. Here are a few examples:
1. Vinegar: Mixing baking soda with vinegar (acetic acid) results in a chemical reaction called neutralization. The vinegar is acidic, and when it reacts with the baking soda, it produces carbon dioxide gas, water, and a sodium acetate solution.
2. Hydrogen peroxide: Combining baking soda with hydrogen peroxide can lead to a chemical reaction known as decomposition. This reaction produces water and oxygen gas. However, please note that this reaction can be highly exothermic and should be done with caution.
3. Lemon juice: Mixing baking soda with lemon juice (which contains citric acid) can cause a chemical reaction similar to the one with vinegar. The acid in the lemon juice reacts with the baking soda, resulting in the release of carbon dioxide gas, water, and a salt (in this case, citrate).
Remember to exercise caution and follow proper safety guidelines when conducting chemical reactions.
1. Vinegar: Mixing baking soda with vinegar (acetic acid) results in a chemical reaction called neutralization. The vinegar is acidic, and when it reacts with the baking soda, it produces carbon dioxide gas, water, and a sodium acetate solution.
2. Hydrogen peroxide: Combining baking soda with hydrogen peroxide can lead to a chemical reaction known as decomposition. This reaction produces water and oxygen gas. However, please note that this reaction can be highly exothermic and should be done with caution.
3. Lemon juice: Mixing baking soda with lemon juice (which contains citric acid) can cause a chemical reaction similar to the one with vinegar. The acid in the lemon juice reacts with the baking soda, resulting in the release of carbon dioxide gas, water, and a salt (in this case, citrate).
Remember to exercise caution and follow proper safety guidelines when conducting chemical reactions.
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