option A Hydrogen will have the greatest rate of effusion beacuse it has the least mass among all
The pH scale is used to measure how acidic or alkaline something is.
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BRAINLIEST??
Answer:
The physical property is density
Answer:
Physical change
Explanation:
while the wax is melting its still wax no chemical change
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Chris is correct because the reactants and products do not have to have the same mass, but they do have to weigh the same. Is the correct answer:) Hannah is right because the mass of the reactants was different than the mass of the products. is incorrect
