Mg(NO3)2 is magnesium nitrate and it is not an element, but is a compound. Each molecule has 1 Mg atom + 2 N atoms + 6 O atoms for a total of 9 atoms per molecule. The more molecules you have, the more atoms you have.
First, 2C6H8O7 is NOT an element it is a Compound. Second the formula for the compound TELLS you how many atoms are present! 2C6H8O7 = Ignoring the element symbols is 2*(6+8+7) 2*(6+8+7)= 2*(21) = 42 Atoms
2 Carbon atoms, 4 Hydrogen atoms, 2 Oxygen atoms
In 2Fe2O3, there are a total of 10 atoms: 4 iron atoms (2 x 2) and 6 oxygen atoms (2 x 3).
There are 4 calcium atoms, 8 chlorine atoms, and 2 carbon atoms in 4CaCl2 (calcium chloride).
This is farely simple. The subscripts just tell you how many atoms of an element are in the compund. Like this: H20 - Water has 2 hydrogen atoms and 1 oxygen atom CO2 - Carbon Dioxide has 1 carbon atom and 2 oxygen atoms. hence the name carbon di(which means 2)oxide(oxygen). The numbers succeeding elements indicate the number of atoms of that particular element in the compound. For example, in H20, there are two hydrogen atoms and one oxygen atom. In H2SO4, there ar two Hydrogen atoms, one Sulfur atom and four Oxygen atoms.
2 moles of ANY element contains 2x6.02x10^23 atoms of that element = 1.2x10^24 atoms.
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How many atoms are in Mg3(PO4)2
First, 2C6H8O7 is NOT an element it is a Compound. Second the formula for the compound TELLS you how many atoms are present! 2C6H8O7 = Ignoring the element symbols is 2*(6+8+7) 2*(6+8+7)= 2*(21) = 42 Atoms
2 Carbon atoms, 4 Hydrogen atoms, 2 Oxygen atoms
In 2Fe2O3, there are a total of 10 atoms: 4 iron atoms (2 x 2) and 6 oxygen atoms (2 x 3).
There are 4 calcium atoms, 8 chlorine atoms, and 2 carbon atoms in 4CaCl2 (calcium chloride).
To determine the total number of atoms in the chemical formula Sq2R3, you need to consider the subscripts. The formula indicates there are 2 atoms of element Sq and 3 atoms of element R. Therefore, the total number of atoms is 2 (from Sq) + 3 (from R) = 5 atoms.
The subscript number after the element symbol, such as the 2 in H2O, tells how many atoms in each molecule. In the example, the 2 refers to H (hydrogen). If there is no number present, then 1 is implied. So H2O has 2 hydrogen and 1 oxygen.
This is farely simple. The subscripts just tell you how many atoms of an element are in the compund. Like this: H20 - Water has 2 hydrogen atoms and 1 oxygen atom CO2 - Carbon Dioxide has 1 carbon atom and 2 oxygen atoms. hence the name carbon di(which means 2)oxide(oxygen). The numbers succeeding elements indicate the number of atoms of that particular element in the compound. For example, in H20, there are two hydrogen atoms and one oxygen atom. In H2SO4, there ar two Hydrogen atoms, one Sulfur atom and four Oxygen atoms.
You can determine the number of atoms of each element in a compound by using the chemical formula of the compound. The subscripts in the formula indicate the number of atoms of each element. For example, in H2O (water), there are 2 hydrogen atoms and 1 oxygen atom.