What is the chemical formula for the gas released by plants during photosynthesis?

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Multiple Choice

What is the chemical formula for the gas released by plants during photosynthesis?

Explanation:
Plants release oxygen during photosynthesis because water is split by light energy to supply electrons, producing O2 as a gas. In the light-dependent reactions, the splitting of water yields oxygen gas, which leaves the plant as a byproduct while carbon dioxide is used up to build sugars. The overall equation shows glucose formation with 6 O2 molecules produced, so the gas you observe coming off the plant is oxygen, with the formula O2. The other options don’t fit because carbon dioxide is consumed, not released, and nitrogen or hydrogen gases aren’t produced by this process.

Plants release oxygen during photosynthesis because water is split by light energy to supply electrons, producing O2 as a gas. In the light-dependent reactions, the splitting of water yields oxygen gas, which leaves the plant as a byproduct while carbon dioxide is used up to build sugars. The overall equation shows glucose formation with 6 O2 molecules produced, so the gas you observe coming off the plant is oxygen, with the formula O2. The other options don’t fit because carbon dioxide is consumed, not released, and nitrogen or hydrogen gases aren’t produced by this process.

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