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Oxygen and Hydrogen, along with Fluorine, Chlorine, Bromine, Iodine, and Nitrogen, to not exist naturally as single atoms. O2 stands for an oxygen molecule, which is made up of two oxygen atoms bonded together. H2 stands for two Hydrogen atoms bonded together. Sometimes atoms are bonded together for other reasons. This notation means the same no matter what the element. For example, Ca2 would stand for two calcium atoms bonded together.
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How many elements are present in h2o?
H2S contains two elements: hydrogen and sulfur.
Why does the oxygen symbol O not have a subscript?
Because symbols for the elements do not have subscripts. A subscript is added in the chemical formula of a compound to indicate how many atoms of the element are included in a molecule of the compound. For example, when hydrogen (H) and oxygen (O) combine to form water (H2O), a subscript 2 is added to the H to indicate there are two hydrogen atoms in a molecule of water, but no subscript is added to the O, because there is only one oxygen atom is in a molecule of water.
What does the O in H2O stand for?
The O in H2O stands for oxygen. The H represents hydrogen, and the supbscripted 2 shows that there are 2 hydrogen atoms.
What is H2O made up of?
A water molecule (H2O) is made up of 2 Hydrogen atoms and 1 Oxygen.
How can you describe in words the chemical reaction represented by the equation?
2 molecules of hydrogen bond with 2 molecules of oxygen which yields 4 molecules of hydrogen and 2 molecules of oxygen
How do you get a small 2 and 4 in H2SO4?
those are subscripts and mean that there are 2 hydrogen atoms and 1 sulfur atom and 4 oxygen atoms
What is a subscript and where is it located in a chemical formula?
In a chemical formula, a subscript is a number written to the right and slightly below the symbol for the chemical element. If the subscript is 1, it is not written. The subscripts for the chemical formula for water, H2O, are 2 for hydrogen and 1 for oxygen. The subscripts for the chemical formula for glucose, C6H12O6, are 6 for carbon, 12 for hydrogen, and 6 for oxygen.
How many atoms in 2H2o2?
4 2 hydrogen and 2 oxygen
What do subscripts in a chemical formula indicate?
Subscripts indicate the number of the preceding element Ie. in H2O there are two hydrogens (H) and one oxygen (O) or in C6H12O8 there are six carbon (C) twelve hydrogen (H) and eight oxygen (O) The number of atoms of the same element in the molecule
What do subscripts in chemical equations tell about the equation?
The subscript in the equation tells you how many atoms of that element there are in the reaction. For example: H20 --> H2 + O2 Before the reaction there are 2 hydrogen atoms and 1 oxygen (the subscript 1 isn't shown). After the reaction there are 2 hydrogen atoms and 2 oxygen atoms. Keep in mind that this is a skeleton equation and isn't balanced yet.
What do the subscripts in the formula for ethane represent?
subscripts in a formula indicates the number of atoms in a molecule or the ratio of elements in a compound.
What is in H2O?
2 hydrogen, one oxygen oxygen and hydrogen (2) Henceforth, H2O.
What is the point of subscripts in writing chemical formulas?
The point is to show the number of atoms of each element. However these are not the exact numbers. There are as many atoms, which could be zillions, that extend to the end of the element. They are instead in the lowest whole number ratio. For example, there are not 2 hydrogen atoms and 1 oxygen atom in water. There may be 200000000 hydrogen and 100000000 oxygen, but it simplifies to the lowest whole number ratio of 2 hydrogen and 1 oxygen. Hope that helped.
How many atoms are in the for CO2H4Ca?
The actual compound is written slightly different using subscripts. CO2H4Ca. There are.5 total atoms. The breakdown is as follows: 1 Carbon, 2 Oxygen, 4 Hydrogen, 1 Calcium.
What two things make water?
Hydrogen and Oxygen The scientific formula is H20 Meaning 2 hydrogen, 1 oxygen
Does glucose have twice the amount of hydrogen as oxygen?
Yes, the amount of hydrogen atoms in glucose is 12, and the amount of oxygen atoms is 6, therefore, there are two times as many hydrogen atoms than oxygen atoms in a molecule of glucose. C6-H12-O6 is the formula.
What are three elements that are in carbohydrate?
Carbon, Hydrogen, and Oxygen ine the ratio of 1:2:1
