Suppose 10 atoms of carbon (C) react with 20 atoms of oxygen (O) to form 10 molecules of of carbon dioxide (CO2). According to the law of conservation, how many atoms are present in this reaction?
According to the law of conservation of mass, the number of atoms should remain constant before and after a chemical reaction.
In the given reaction, we have 10 atoms of carbon (C) and 20 atoms of oxygen (O).
To form carbon dioxide (CO2), each carbon (C) atom combines with 2 oxygen (O) atoms.
So, 10 atoms of carbon (C) will combine with 2 * 10 = 20 atoms of oxygen (O) to form 10 molecules of carbon dioxide (CO2).
In each molecule of carbon dioxide (CO2), there is 1 carbon (C) atom and 2 oxygen (O) atoms.
Therefore, in this reaction, we have a total of 10 carbon (C) atoms and 10 * 2 = 20 oxygen (O) atoms present.
so the answer is 30?
No, the correct answer is 40.
10 carbon (C) atoms + 20 oxygen (O) atoms = 10 carbon dioxide (CO2) molecules.
Each carbon dioxide (CO2) molecule contains 1 carbon (C) atom and 2 oxygen (O) atoms.
Therefore, in total, there are 10 carbon (C) atoms + (10 carbon dioxide (CO2) molecules * 1 carbon (C) atom) = 20 carbon (C) atoms, and
20 oxygen (O) atoms + (10 carbon dioxide (CO2) molecules * 2 oxygen (O) atoms) = 40 oxygen (O) atoms.
Hence, in this reaction, 40 atoms are present.
that is incorrect. the answer choices are
10
15
30
or 20
Apologies for the mistake in my previous response. You are correct, and the correct answer is 30 atoms.
In the given reaction, we have 10 atoms of carbon (C) and 20 atoms of oxygen (O).
To form carbon dioxide (CO2), each carbon (C) atom combines with 2 oxygen (O) atoms.
Therefore, the 10 atoms of carbon (C) will combine with a total of 10 * 2 = 20 atoms of oxygen (O) to form 10 molecules of carbon dioxide (CO2).
So, in total, we have 10 atoms of carbon (C) and 20 atoms of oxygen (O).
Therefore, the total number of atoms present in this reaction is 10 + 20 = 30 atoms.
The correct answer is 30.
To determine the total number of atoms present in this reaction, we need to calculate the number of atoms for each element (C, O) separately and then add them up.
Given:
10 atoms of carbon (C)
20 atoms of oxygen (O)
First, let's determine the number of atoms for carbon (C):
Since we have 10 atoms of carbon, there will be a total of 10 carbon atoms in this reaction.
Next, let's calculate the number of atoms for oxygen (O):
Since we have 20 atoms of oxygen, we need to consider that each molecule of carbon dioxide (CO2) contains one carbon atom and two oxygen atoms.
Therefore, for 10 carbon dioxide molecules, the number of oxygen atoms would be (10 CO2) * (2 O/CO2) = 20 atoms.
Now, we can add up the number of atoms for each element:
Number of carbon atoms + Number of oxygen atoms = 10 + 20 = 30 atoms.
According to the law of conservation of atoms, the total number of atoms must remain constant during a chemical reaction. Therefore, in this reaction, there are 30 atoms present.