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Four: 2x2 = 4 C atoms in 2C2H4 (= two molecules C2H4)

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Q: How many carbon atoms in two ethene molecules?
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How many types of bonds are present ethene?

Ethene (C2H4) has 2 bonds between the 2 carbon atoms and each carbon atom shares 2 electrons from 2 Hydrogen atoms.


How many carbon atoms are in 5 molecules of isopropyl alcohol?

The answer is 15 carbon atoms.


How do you distinguish between ethane and ethene?

Ethane has two carbon atoms and six hydrogen atoms (C2H6). It is a flammable gas and is a saturated molecule, meaning that each carbon atom has four bonds linked to 4 other atoms. Methane (CH4), propane (C3H8) and butane (C4H10) are similar molecules and all are flammable gases. Ethene has two carbon atoms and four hydrogen atoms (C2H4). It is also a gas but it is an unsaturated molecule: the two carbon atoms are linked by a double bond. Ethene molecules can join together into a single, long molecule. The result is a string of carbon atoms that each have two hydrogen atoms attached and are also linked to two other carbon atoms. This is polythene or polyethelene, a simple polymer that is used for plastic bags among other things. The ability to form into long chains is due to the double bond between the carbon atoms in the ethene molecule.


How many carbon atoms are in a molecule of maltose if the molecules has 12 oxygen atoms?

12 carbon atoms exist in a molecule of maltose if the molecules have 12 oxygen atoms.


What is special about carbon atoms that they can make so many kinds of molecules?

Carbon atoms can be bonded together.


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 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 carbon are in two molecules of glucose?

12


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 atoms does it take to create three glucose molecules?

18 carbon atoms


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 carbon atoms total would you find in three glucose molecules?

18 carbon atoms (6 in each)