A student claims that the reaction of hydrogen and oxygen to form
water is evidence supporting the claim that mass is conserved in a
chemical reaction. The chemical equation the student uses for the reaction is H2 + O2 --> H2O. Does this evidence support the claim? Why or why not? *
Yes, it supports the claim because all the elements in the reactants appear in the product
No, it does not support the claim because it is not a closed system.
Yes, it supports the claim because the reaction equation is balanced.
No, it does not support the claim because the reaction equation is not balanced.