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Questions and Answers
What is produced when magnesium ribbon burns in air?
What is produced when magnesium ribbon burns in air?
- Magnesium Hydroxide
- Magnesium Chloride
- Magnesium Oxide (correct)
- Magnesium Sulfide
Which of the following is an example of a chemical change?
Which of the following is an example of a chemical change?
- Salt dissolving in water
- A rusting iron substance (correct)
- Ice melting
- Water boiling
What is the nature of the product formed from burning magnesium ribbon?
What is the nature of the product formed from burning magnesium ribbon?
- A liquid
- A white powder (correct)
- A colored solid
- A gas
In the described activity involving magnesium, what role does the Bunsen burner play?
In the described activity involving magnesium, what role does the Bunsen burner play?
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What occurs to the initial substance, magnesium ribbon, during the chemical reaction?
What occurs to the initial substance, magnesium ribbon, during the chemical reaction?
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Study Notes
Chemical Reactions
- Chemical reactions occur in everyday life, such as milk spoiling, vegetables wilting, and candles burning.
- These reactions demonstrate chemical changes, transforming the initial substances into new ones.
Chemical Reactions as Chemical Changes
- Chemical changes involve altering the composition and identity of substances through chemical reactions.
Activity 1.3: Burning Magnesium Ribbon
- Magnesium ribbon reacts with air when heated, producing a white powder called Magnesium Oxide.
- The experiment collects the Magnesium Oxide product on a watch glass.
- Magnesium ribbon burns with a bright white light and produces a white powder as a result of the chemical reaction.
- The white powder, Magnesium Oxide, is a new substance formed from the reaction.
- This demonstrates how a chemical reaction changes the nature of a substance, resulting in a new product.
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