According to the law of conservation of mass, in any chemical change: the mass of reactants is greater than the mass of products
O the mass of reactants is less than the mass of products
the mass of reactants is equal to the mass of the products
the masses of products and reactants have no predictable relationship

The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. ... The carbon atom changes from a solid structure to a gas but its mass does not change. Similarly, the law of conservation of energy states that the amount of energy is neither created nor destroyed.

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the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.