0
How many atoms of hydrogen appear on each side of the equation?
Wiki User
∙ 13y ago
The number of atoms in the reactants should equal the number of atoms in the products because the weight should be equal according to the Law of Conservation of Mass.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe number of atoms in the products is the same as the number of atoms in the reactants.
Wiki User
∙ 13y agoDepends on the equation.
Wiki User
∙ 12y agoThey must be equal
Wiki User
∙ 7y agoThis depends on the given reaction.
Add your answer:
Earn +20 pts
2H2 02---2H20 - how many molecules and number of atoms of each element in the equation?
4 molecules of hydrogen & oxygen4 atoms hydrogen& 3 of oxygen
What does the chemical symbol 2H mean?
H2 is a hydrogen molecule made of two hydrogen atoms bonded together. The preceding two refers to the number of moles of H2 molecules in the chemical equation.
What type of bond joins carbon atom to each of the hydrogen atoms?
A single (nonpolar) covalent joins the carbon atom to each of the hydrogen atoms.
How do you demonstrate a chemical equations is balanced?
This is quite simple, you count up the number of ATOMS on each side of the "=>" sign, the rules for this are:-In a chemical formula a "letter or symbol for an atom of an Element" followed by a number (usually expressed as a subscript) denotes how many ATOMS of that element are present in that molecule.A number before a "formula for a compound or molecule" denotes the number of those molecules present.The mathematical symbol "+" shows which groups of molecules are present in the equation.Thus:-The balanced equation for the formation of water from its elemental components (gaseous Hydrogen and gaseous Oxygen) is:-2H2+O2 => 2H2O----------------------------------------------------------------------------------Using the rules 1-3 above we can see that the products (after the "=>") of the reaction, contain 2 ATOMS of Hydrogen and 1 ATOM of Oxygen - H2O, but that there are two water molecules present making 4 ATOMS of Hydrogen and 2 ATOMS of Oxygen - a total of 6 ATOMS.Now looking at the reactants (before the "=>") we see that hydrogen and Oxygen gases are "diatomic" (this means that the molecule contains 2 a pair of ATOMS) - H2 and O2. Thus if you reacted one Hydrogen molecule with one Oxygen molecule you would use up all the Hydrogen but only one of the Oxygen ATOMS. Thus you would need TWO Hydrogen molecules to use up all the Oxygen - thus the "2" in front of the "H2". So adding up all the reactants' ATOMS, we get 4 Hydrogen ATOMS and 2 Oxygen ATOMS - a total of 6 ATOMS.Thus we can write2 molecules of Hydrogen and 1 molecule of Oxygen which contain 6 ATOMS, 4 of Hydrogen and 2 of Oxygen reacted to produce 2 molecules of Water which contain 6 ATOMS, 4 of Hydrogen and 2 of Oxygen.There are the same number of ATOMS either side of the equation AND the same number of ATOMS for EACH ELEMENTeither side of the equation. This means the equation is balanced. This has to be because matter can neither be created or destroyed in normal circumstances.
How many atoms of hydrogen are in a molecule of hydrogen oxcide?
Hydrogen oxide (also known as water) contains two hydrogen atoms and one oxygen atom in each molecule.
How can I tell if a chemical reaction is balanced or not balanced?
If the equation has the same number of each type of atom on both sides of the arrow, it is balanced. If the number of atoms on each side of the arrow is not the same, the equation is not balanced. For example, in the equation H2 + O2 -->H2O, there are two hydrogen atoms and two oxygen atoms on the left, and two hydrogen atoms and one oxygen atom on the right. Therefore, the equation is not balanced. However, in the equation 2H2 + O2 -->2H2O, there are four hydrogen atoms and two oxygen atoms on the left and four hydrogen atoms and two oxygen atoms on the right, so the equation is balanced.
How many atoms of each element are present in this equation H2SO4?
two atoms of hydrogen one atom of Sulfur and four atoms of oxygen
How many atoms of each element are in the product using the chemical equation for photosynthesis?
Glucose (C6H12O6) has 6 carbon atoms, 12 hydrogen atoms, 6 oxygen atoms.
2H2 02---2H20 - how many molecules and number of atoms of each element in the equation?
4 molecules of hydrogen & oxygen4 atoms hydrogen& 3 of oxygen
Is it possible that h2o plus h2o equals helium?
No: In a chemical reaction, the number and type of atoms of each element involved must be the same on both sides of the chemical equation. In the reaction postulated in the question, helium does not appear as a reactant and hydrogen and oxygen do not appear in the products.
What don't most hydrogen atoms contain?
Most hydrogen atoms don't contain any neutrons. Deuterium atoms are hydrogen atoms with one neutron each, and tritium atoms are hydrogen atoms with two neutrons each, but most hydrogen atoms are protium atoms, with no neutrons at all. All other atoms in the universe except protium contain at least one neutron each.
What does the chemical symbol 2H mean?
H2 is a hydrogen molecule made of two hydrogen atoms bonded together. The preceding two refers to the number of moles of H2 molecules in the chemical equation.
If the number of atoms of each element in the products equals the number of atoms of each element in the reactants the equation is?
In this case, the equation is balanced.
If the number of atoms of each element in the products equals the number of atoms of each element in the reactants the equation is .?
In this case, the equation is balanced.
How many atoms are in five molecules of hydrogen?
ten as each hydrogen molecules contains two atoms.
How many hydrogen atoms are in each molecule of water?
H20, so that would be two hydrogen atoms.
What is the type of equation in which the numbers of each of the reactants atoms equals the number of product atoms?
A "balanced" equation.
