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Just one. A molecule is the smallest unit of a substance, so by just having "CO2" implies "1CO2". A coefficient is needed to indicate more than one molecule, such as "6CO2" which is six molecules of carbon dioxide.

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How many hydrogen and carbon atoms are made in 5 molecules of carbon dioxide?

5 molecules of carbon dioxide will contain 5 carbon atoms (1 per molecule) and no hydrogen atoms as carbon dioxide contains only carbon and oxygen. The 5 molecules will contain a total of 10 oxygen atoms (2 per molecule).


How many moles of oxygen atoms are present in one half mole of carbon dioxide molecules?

Since each mole of carbon dioxide molecules contains two moles of oxygen atoms, as indicated by the formula CO2 for carbon dioxide, half a mole of carbon dioxide will have one mole of oxygen atoms.


How many number of hydrogen and oxygen atoms in three molecules of carbon dioxide?

there is no hydrogen in carbon dioxide. since carbon dioxide is CO2 there are 3 carbon and 6 oxygen atoms in three molecules.


How many atoms of oxygen must be present in 10 molecules of carbon dioxide?

There are 20 atoms of oxygen in 10 molecules of carbon dioxide, as each molecule contains 2 oxygen atoms.


How many atoms in 2 molecules of carbon dioxide?

There are a total of 6 atoms in 2 molecules of carbon dioxide. Each molecule of carbon dioxide contains 1 carbon atom and 2 oxygen atoms. Therefore, in 2 molecules, you would have 2 carbon atoms and 4 oxygen atoms, totaling 6 atoms.


How many atoms of oxygen and carbon does a molecule or carbon dioxide have?

Carbon Dioxide, or CO2, has one Carbon molecule and two Oxygen molecules.


How many carbon atoms react with 14 molecules of oxygen to form 14 molecules of carbon dioxide with the equation C O2CO2?

With the chemical equation given, each molecule of carbon dioxide contains 1 carbon atom. Therefore, 14 molecules of carbon dioxide will require 14 carbon atoms to react with the 14 molecules of oxygen.


In two molecules of carbon dioxide 2CO2 there are how many atoms and what are they made of?

2 CO2 means there are two molecules of carbon dioxide. In one molecule of CO2 there is 1 carbon atom, and 2 oxygen atoms. So three atoms total. Therefore, in 2 molecules (each with 3 atoms) there are 6 atoms total. The molecules are made of atoms of carbon and oxygen. The atoms themselves are made of protons, electrons, and neutrons.


What is the number of carbon atoms in 2.5 x 1021 molecules of carbon dioxide?

The formula is CO2, so there is one atom of carbon and two atoms of oxygen in each molecule.So there are 2.5x10^21 atoms of carbon in that many molecules of CO2.


How many carbon dioxide molecules will be formed in two ethane molecules?

Ethane does not have any molecule of carbon dioxide. However when ethane undergoes combustion then two molecules of carbon dioxide are formed (as ethane contains two carbon atoms).


How many carbon dioxide Molecules are needed to make a single?

None. You see, carbon dioxide, per say, is not used in the chemical formula for glusose, which is C6-H12-O6. It makes use of six carbon atoms and six oxygen atoms, but no carbon dioxide moleecules.


When one molecule of glucose undergoes alcohol fermentation what products and how many molecules of each of them account for the 6 carbon atoms?

2 molecules of ethanol and 2 molecules of carbon dioxide