A plant uses the energy from sunlight to create oxygen and glucose from carbon dioxide and water. Which statement is true about the changes that have occurred?
A chemical change has occurred because energy was needed.

A physical change has occurred because the substances are still gases.

A physical change has occurred because the plant looks different.

A chemical change has occurred because new compounds have been produced.

Question

15-10-2014
Chemistry

Answered

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A plant uses the energy from sunlight to create oxygen and glucose from carbon dioxide and water. Which statement is true about the changes that have occurred?
A chemical change has occurred because energy was needed.

A physical change has occurred because the substances are still gases.

A physical change has occurred because the plant looks different.

A chemical change has occurred because new compounds have been produced.

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