To determine which statements correctly describe how matter is conserved in each chemical reaction, let's analyze the provided statements.
For Chemical Reaction 1:
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M. There are three oxygen atoms in the reactants for every three oxygen atoms in the products.
This statement is correct as it indicates that oxygen is conserved. -
P. There is one hydrogen atom in the reactants for every two hydrogen atoms in the products.
This statement is incorrect as it suggests a loss of matter (hydrogen atoms not conserved). -
R. There is one carbon atom and one hydrogen atom in the reactants for every three carbon atoms and three hydrogen atoms in the products.
This statement is incorrect as it incorrectly describes the ratio of carbon and hydrogen, indicating a net gain of atoms instead of conservation. -
S. There are two carbon atoms and two oxygen atoms in the reactants for every three carbon atoms and three oxygen atoms in the products.
This statement is also incorrect, as it implies that atoms are created rather than conserved.
Correct Statement for Chemical Reaction 1: M.
For Chemical Reaction 2:
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A. There are six oxygen atoms in the reactants for every three oxygen atoms in the product.
This statement is incorrect since it implies a loss of oxygen atoms, indicating matter is not conserved. -
B. There are two calcium ions in the reactants for every one calcium ion in the product.
This statement is incorrect as it also implies a loss of calcium ions, which represents a violation of mass conservation. -
C. There are more atoms in the reactants than there are in the product.
This statement is not true if matter is conserved; therefore, this is incorrect. -
D. There is one carbonate ion in the reactants for every one in the product.
This statement is correct, as it indicates that the carbonate ions are conserved.
Correct Statement for Chemical Reaction 2: D.
In summary, the correct statements are:
- Chemical Reaction 1: M
- Chemical Reaction 2: D
1 answer