Questions: Magnesium is heated in a dish. It reacts with oxygen in the air Solid magnesium oxide is made. What happens to the mass in the dish? It goes up and down It decreases It stays the same It increases I don't know

Magnesium is heated in a dish. It reacts with oxygen in the air Solid magnesium oxide is made. What happens to the mass in the dish? It goes up and down It decreases It stays the same It increases I don't know
Transcript text: Magnesium is heated in a dish. It reacts with oxygen in the air Solid magnesium oxide is made. What happens to the mass in the dish? It goes up and down It decreases It stays the same It increases I don't know
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Solution

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Solution Steps

Step 1: Analyze the chemical reaction

Magnesium (Mg) reacts with oxygen (O2) in the air to produce solid magnesium oxide (MgO). This means that the magnesium is gaining oxygen atoms in the reaction.

Step 2: Apply the law of conservation of mass

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. Since the magnesium is combining with oxygen from the air, the final product, magnesium oxide, will have a greater mass than the initial magnesium.

Final Answer: The mass increases.

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