Mg + 2HCl → MgCl2 + H2
Stacy initially weighs both the magnesium and hydrochloric acid, registering a combined mass of 55 grams. Subsequently, post-reaction, she assesses the mass of the resultant products, magnesium chloride (MgCl2) and hydrogen (H2), and once more records a total mass of 55 grams. Does Stacy's data substantiate the law of conservation of matter, and if so, what is the rationale behind this assertion?
(1 point)
Responses
Yes, her data supports the law of conservation of matter because the mass of the reactants is identical to the mass of the products.
Yes, her data supports the law of conservation of matter because the mass of the reactants is identical to the mass of the products.
Yes, it does, as her data shows that the mass of the products is greater than the mass of the reactants.
Yes, it does, as her data shows that the mass of the products is greater than the mass of the reactants.
No, it does not support the law of conservation of matter, as her data indicates that the mass of the reactants is less than the mass of the products.
No, it does not support the law of conservation of matter, as her data indicates that the mass of the reactants is less than the mass of the products.
No, it does not support the law of conservation of matter, as her data demonstrates that the mass of the reactants is equal to the mass of the products.
No, it does not support the law of conservation of matter, as her data demonstrates that the mass of the reactants is equal to the mass of the products.
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1 answer
The correct response is:
Yes, her data supports the law of conservation of matter because the mass of the reactants is identical to the mass of the products.
The law of conservation of matter states that matter cannot be created or destroyed in a chemical reaction. Since Stacy measures both the mass of the reactants (55 grams) and the mass of the products (also 55 grams) as being equal, this data is consistent with the law of conservation of matter.
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