To determine which model best represents the law of conservation of mass in a chemical reaction, we need to identify a model where the number and type of atoms are the same on both sides of the reaction.
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. Therefore, the total number of atoms of each element must be equal on both sides of the equation.
None of the options you provided seem to contain clear representations of chemical reactions, possibly due to formatting errors. Chemical reactions are typically represented in a format such as:
\[ \text{Reactants} \rightarrow \text{Products} \]
For example:
\[ 2H_2 + O_2 \rightarrow 2H_2O \]
In this example, there are 4 hydrogen atoms and 2 oxygen atoms on both sides, illustrating that mass is conserved.
If you have specific chemical equations you'd like to evaluate that clearly represent the reactants and products, please provide those, and I can help you identify which one best follows the law of conservation of mass.
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