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The appropriate rule is that for each element in the formula unit or molecular formula of a compound, the number of atoms of one element is the product of the subscript following the atomic symbol and the coefficient, a normally sized and placed number preceding the formula unit. If either or both of an explicit subscript or coefficient is missing, the number 1 is assumed.
Therefore, 2CO2 contains 4 oxygen atoms and 3 H2O contains 3 oxygen atoms, for a total of 7 in the two formulas combined.
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∙ 9y ago
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∙ 11y agoConcentration of oxygen in dry air is 20,946 %.
Concentration of carbon dioxide in dry air is 0,039445 %.
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∙ 12y agocarbon already oxidised to maximum . reaction possible with CO+O2=CO2
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∙ 8y agoThere is no carbon dioxide in oxygen. Oxygen makes up two of the three atoms in each molecule of carbon dioxide.
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∙ 14y agothe answer is 12
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∙ 11y ago2co+o2-----2co
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∙ 12y agoCo2o3
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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 equation for an explosive reaction between oxygen gas and carbon monoxide?
2CO + O2 = 2CO2
Balanced equation between ethanol and oxygen?
C2H5OH + 3O2 ----> 2CO2 + 3H2O
What are the number of carbon atoms and oxygen atoms in 2 molecules of carbon dioxide?
One molecule of CO2 has one carbon atom and two oxygen toms. denoted by the formula CO2 So in two molecules of CO2 there are CO2 & another CO2 . Chemically this is shown as 2CO2, that is a figure is placed to the left of the molecular formula. Since there are CO2 & another CO2 , then there are two(2) atoms of carbon and four(4) atoms of oxygen.
In combustion is carbon dioxide and carbon monoxide formed always formed?
The combution process is two stage, carbon monoxide is formed first and if excess oxygen is present an the carbon monoxide reacts with additional oxygen to form carbon dioxide. 2C + O2 ---> 2CO + O2 ---> 2CO2
How many elements are in a 2co2 atom?
Four oxygen atoms
The coefficient in 2 in 2CO2 means that there are?
two carbon atoms and two oxygen atoms present
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.
How many Oxygen atoms are present in this molecular formula: 2CO2?
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How does the presence of a coefficient affect the number of atoms of each type in the formula that it prescedes?
You multiply the coefficient times the subscripts (number of atoms of each type in the formula) to get the total number of atoms of each element. For example: 2CO2 means 2 carbon atoms and 4 oxygen atoms (No subscript is understood to be 1.) 3C6H12O6 means 18 carbon atoms, 36 hydrogen atoms, 18 oxygen atoms
What mixture is made from carbon monoxide plus oxygen?
Balanced: 2CO+O2 --> 2CO2
What is the small 2 for in co2?
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What is the chemical equation for ethanol and oxygen?
Balanced Chemical EquationC2H5OH + 3O2 -----> 2CO2 + 3H2OWord EquationEthanol + Oxygen -----> Water + Carbon Dioxide
What is the equation for an explosive reaction between oxygen gas and carbon monoxide?
2CO + O2 = 2CO2
Balanced equation between ethanol and oxygen?
C2H5OH + 3O2 ----> 2CO2 + 3H2O
What are the number of carbon atoms and oxygen atoms in 2 molecules of carbon dioxide?
One molecule of CO2 has one carbon atom and two oxygen toms. denoted by the formula CO2 So in two molecules of CO2 there are CO2 & another CO2 . Chemically this is shown as 2CO2, that is a figure is placed to the left of the molecular formula. Since there are CO2 & another CO2 , then there are two(2) atoms of carbon and four(4) atoms of oxygen.
What is the chemical formula for the combustion of ethanol?
C2H5OH + 3O2 --> 2CO2 + 3H2O Ethanol + Oxygen --> Carbon Dioxide + Water
