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Subscripted numbers are listed after each element to indicate the number of atoms of that element in the compound. For instance the formula for water is H2O, which indicated that there are 2 hydrogen atoms and 1 oxygen atom (no subscript implies the number 1).
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∙ 16y ago
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∙ 14y agoFor example:
C2H6 is Ethane. The subscript numbers indicate how many Carbon and Hydrogen atoms are in the compound. 2 and 6 respectively. In the formula for water, H2O, the subscript 2 indicates that there are 2 atoms of Hydrogen· The lack of a subscript on the O, indicates that there is only one atom of Oxygen in this compound.
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∙ 12y agoThe stoichiometric formula of the compound multiplied by Avogadro's number. For instance, benzene has the formula C6H6. The number of carbon atoms for the compound is thus 6 x 6.023 x 10^23 atoms = 3.6138 x 10^24 atoms; the same is true for hydrogen.
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∙ 10y agoConsider a compound such as methane, CH4. It consists of two kinds of atoms, carbon and hydrogen atoms. When the number of atoms is just one it's omitted; in this case there is one carbon atom. If the number of atoms is greater than one, that number is made explicit; in this case there are four hydrogen atoms.
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∙ 10y agoThe subscript of each element gives the number of atoms per molecule.
As an example, CO2 has 1 carbon atom and 2 oxygen atoms since there's a subscript 2 after the O for oxygen.
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∙ 9y agoThe molecular formula of compound lists up to three points of chemical information. It lists the comprising elements, their atomic quantities, and in some cases oxidation state.
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∙ 11y agoThe number of moles is proportional to the number of atoms or other particles under consideration.
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∙ 14y agoLook at the compound's formula (not the empirical formula) and its coefficients.
For instance, acetic acid CH3COOH has 8 atoms.
Sibiya Mathokoza
The number of moles is proportional to a number of particular
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Models are used to show which qualities of a compound chemical structure?
Models are used to show the arrangement of the atoms in a molecule.
How many atoms are present in 1 milligram of oxygen?
one mole of oxygen = 16grams and is 6.02x10^23 atoms one milligram of oxygen is 0.001 grams. number of moles = mass used/ RMM of compound therefore number of moles = 0.001/16 =6.25x10^-5 moles used. to convert to number of atoms multiply by avagadros number. 6.25x10^-5 * 6.02x10^23 3.763x10^19 atoms
Is hydrogen gas a compound?
Yes, hydrogen gas is a compound. It is made up of molecules which consist of two atoms of hydrogen, an element. It just happens that the same name is used for the gas as for the element.
What is a compound made up of carbon hydrogen and oxygen atoms it is used by cells to store and release energy Sugars are made by chloroplasts through photosynthesis and consumed by mitochondria t?
protein
What information do you need to know to determine the chemical formula of an unknown compound?
We need to know the elements contained in this molecule and the percentages.
How are subscripts used in a compound?
They show the number of atoms that element has in that compound.
A molecule of an organic compound has twice as many hydrogen atoms as carbon atoms and the same of oxygen atoms as carbon atoms The molecular mass of this compound is 120u What is the MolecularFormula?
A macromolecule made up of mainly carbon and hydrogen atoms that is primarily used for energy storage and in cell membranes.
What can used to distingush a mixture for a compound?
In a compound all the atoms are stuck together in a mixture they are not however
What do the prefixes mono di and poly mean?
Mono- means one, di- means two, and poly- means many or multiple. These prefixes are commonly used in chemistry to indicate the number of atoms of an element in a compound.
What is decalin?
Decalin is the term used to indicate decahydronaphthalene, it is a bicyclic organic compound.
In a chemical formula what is used to indicate the number of atoms of each element?
It is called a subscript. For example: In the formula for water (H2O), 2 is the subscript indicating that there are 2 hydrogen atoms in the compound .
What is stone in relation to body weight and what does a stone equal in pounds?
The compound Pb2Se4 consists of lead (Pb) and selenium (Se) elements. To determine the compound name, we use the rules for naming binary compounds. Since lead (Pb) is a metal and selenium (Se) is a nonmetal, we use the prefix "di-" to indicate two atoms of lead (Pb) and the prefix "tetra-" to indicate four atoms of selenium (Se). The suffix "-ide" is used for the nonmetal, selenium (Se). Therefore, the compound name for Pb2Se4 is lead(II) selenide.
Models are used to show which qualities of a compound chemical structure?
Models are used to show the arrangement of the atoms in a molecule.
What is the chemical structure of solid?
The chemical formula for solids is like the regular chemical formula of an element or compound. The only difference is that an "(s)" is added next to the right end of the formula to indicate the phase. Example: What is the chemical formula of solid sodium chloride (NaCl) ? Chemical formula: NaCl Chemical formula to indicate that it is a solid: NaCl (s) Additional information: The "(s)" abbreviation is used to indicate that the compound is a solid. A "(g)" abbreviation is used to indicate that the compound is a gas. A "(l)" abbreviation is used to indicate that the compound is a liquid. An "(aq)" abbreviation is used to indicate that the compound is dissolved, and therefore soluble, in water.
Can compound microscopes see atoms?
No. No matter how powerful an optical microscope is, it can never be used to see atoms. Atoms are smaller than the wavelength of visible light. You can, however, view atoms using an electron microscope.
Does a compound have the same number of atoms as elements?
Not at all. The little numbers after the element's chemical symbol show you how many atoms of that element the compound has. For example, CH4 is methane, C2H6 is ethane, which would have 8 atoms instead of methane's 5, C3H8 is propane with 11 atoms, as long as hydrocarbons are concerned. But there are compounds such as proteins with hundreds of atoms and there their arrangement in space makes a lot of difference for their chemical and physiological properties.
What is monamers made out of?
Many different substances, mostly with some carbon atoms in a compound with double bonds between 2 of the carbon atoms. Ethene is the monomer used to make many plastics, like garbage bags. C2H4 The plastic formed is usually called polyethylene.
