Question

1. students investigated photosynthesis in plants. they modeled the reaction using the equation below. light 6co₂+6h₂o → c₆h₁₂o₆+6o₂ which two statements best explain how this reaction demonstrates the law of conservation of mass? select two correct answers. energy from sunlight increases the mass of the products compared to the reactants. the reaction destroys some oxygen atoms while creating new carbon atoms. the atoms in the reactants are rearranged into new molecules, but none are lost or created. the number of molecules increases after the reaction, which makes the products heavier.

Explanation:

The law of conservation of mass states that in a chemical reaction, atoms are neither created nor destroyed, only rearranged. In the photosynthesis reaction, the atoms in the reactants ($6CO_2$ and $6H_2O$) are rearranged to form the products ($C_6H_{12}O_6$ and $6O_2$) without any loss or creation of atoms. Energy from sunlight is used for the reaction but does not affect the mass - mass is conserved due to atomic rearrangement. Also, atoms are conserved, not molecules necessarily, and no atoms are destroyed or newly created in a chemical reaction following the law of conservation of mass.

Answer:

The atoms in the reactants are rearranged into new molecules, but none are lost or created.