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In the compound 2HCl, there are a total of 2 molecules of hydrochloric acid. Each molecule contains 1 hydrogen (H) atom and 1 chlorine (Cl) atom, so for 2HCl, there are 2 hydrogen atoms and 2 chlorine atoms, resulting in a total of 4 atoms. There are 2 different elements present: hydrogen and chlorine.
What else can I help you with?
How many atoms are in 2 mole of potassium?
2 moles of ANY element contains 2x6.02x10^23 atoms of that element = 1.2x10^24 atoms.
How many atoms make up the element CuS04?
CuSO4 isn't an element.
How many atoms of each element are in CO2?
there are 3 in tottal
Do the subscripts in a chemical formula represent the relative mass of each atom in a chemical compound?
It usually represent the amount of atoms in a molecule, i.e. Na2CO3 + 2HCl --> 2NaCl + CO2 +H2O So, in the first compound, there are 2 sodium atoms, one carbon atom and 3 oxygen atoms. In water, there is one hydrogen atom and 2 oxygen atoms..
What are the basic unit of a chemical element called?
many identical atoms Answer is= Atoms.
How many atoms are in the element copper and in the element carbon and in the element aluminum and how many atoms are in baking soda and how many atoms are in a sugar cube?
There are no "atoms in an element," but rather atoms OF an element. If you are trying to find the number of atoms in a sample of a pure element you divide its weight by its molar mass and then multiply by 6.022 x 10^23 to get the answer in atoms. The answer options are 2,3, or 4.
What is right numerically atoms for gold to be element?
Gold is the element gold no matter how many atoms of it you have.
How to Balance the following equation HCl plus Na2S------H2S plus NaCl?
The balanced equation is 2HCl + Na2S → H2S + 2NaCl. This is balanced as the number of atoms of each element is the same on both sides of the equation.
How many atoms are in the element rutherfordium?
Rutherfordium is a single chemical element.
How many oxygen atoms in carbon?
Zero. Oxygen is an element.
How many atoms are in 2 mole of potassium?
2 moles of ANY element contains 2x6.02x10^23 atoms of that element = 1.2x10^24 atoms.
How many atoms are there in an element?
The number of atoms in an element depends on the element's atomic mass and the amount of the element present. One mole of an element contains approximately 6.022 x 10^23 atoms, known as Avogadro's number.
How many atoms are in the element H2o?
3
How do you balance PbOH2 and HCl equals H2O and PbCl2?
To balance the chemical equation Pb(OH)2 + 2HCl → 2H2O + PbCl2, you need to ensure that the number of atoms of each element is the same on both sides of the equation. Start by balancing the Pb atoms, then balance the Cl atoms by adding a coefficient of 2 in front of HCl. Finally, balance the H and O atoms by adjusting the coefficients of H2O and Pb(OH)2 accordingly.
What shows how many atoms of each element are in a unit of substance?
The chemical formula shows you this. The subscripted number next to each element shows how many atoms are present in a molecule or formula unit. If no number is shown, then only one atom of that element is present.
How many atoms make up the element CuS04?
CuSO4 isn't an element.
How many atoms are in the element C8H12?
C8H12 8 Carbon atoms + 12 Hydrogen atoms = 20 atoms total
