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How many grams of H2 are needed to produce 13.14g of NH3?
To calculate the mass of H2 needed to produce 13.14g of NH3, you can use the molar ratio between H2 and NH3. From the balanced chemical equation for the reaction, you can see that 2 moles of NH3 are produced for every 3 moles of H2 consumed. First, calculate the number of moles of NH3 using its molar mass, then use the molar ratio to find the moles of H2 needed, and finally convert the moles of H2 into grams.
What is the method to find the average energy (eavg) of the electrons in sodium at absolute zero?
To find the average energy of electrons in sodium at absolute zero, you can use the formula for the Fermi energy, which is given by E (3/5) (h2 / (8 m V(2/3))), where h is Planck's constant, m is the mass of an electron, and V is the volume of the material. By plugging in the values for sodium, you can calculate the average energy of the electrons at absolute zero.
Balance the formula example?
Hcl + Mg --> MgCl2 + H2 This equation has an unbalanced amount of atoms on each side. To work out the balanced formula you need to find the number of atoms of each side. There are: 1 Hcl + 1 Mg ---> 1Mg 2Cl + 2H Bear in mind you cannot change a "clump" of elements, as this changes the reaction (MgCl2). So, to get the equal number of atoms, you simply put in a number at the start of each "clump" to multiply it and even out, sort of like expanding a set of brackets in maths. In this equation we want to put a 2 in front of Hcl to multiply the Hydrogen atom and get 2 hydrogen atoms (therefore balancing with the left side). Doing so will then multiply the chlorine atoms by 2, giving 2 chlorine atoms. So now there are: 2Hcl + Mg --> MgCl2 + H2 (2 hydrogen atoms, 2 chlorine atoms, 1 magnesium atom on the left. one magnesium atom two chlorine atoms and 2 hydrogen atoms on the right) and that's it. the equation is balanced, easy as that... If you get it try this one, Na + H2O --> NaOH + H2. Answer will be down here.... ---- 2Na + 2H2O --> 2NaOH + H2
What is the difference between HB2 H2 pencils?
HB and H2 are both designations for pencil hardness: HB is a standard middle grade that offers a balance between darkness and durability, while H2 is slightly harder and lighter. In general, HB pencils are more versatile for everyday writing and drawing, while H2 pencils are better for intricate detail work.
How many grams of Fe3O4 are required to react completey with 300 grams of H2?
The balanced chemical equation for the reaction between Fe3O4 and H2 is: Fe3O4 + 4H2 -> 3Fe + 4H2O From the equation, it can be seen that 1 mole of Fe3O4 reacts with 4 moles of H2. Calculate the moles of H2 in 300g, then use the mole ratio to find the moles of Fe3O4 needed. Finally, convert the moles of Fe3O4 to grams using its molar mass to determine the amount required.
How many valence electrons does H2O2have?
H2O2 is a compound, and the concept of "valence electrons" applies to atoms but not to compounds. If the question is or should be intended to be, "How many valence electrons did the atoms in one formula unit of H2O2 have before they reacted to form the compound?", the answer is one from each hydrogen atoms and six from each oxygen atom, for a total of 14.
How many electrons are present in one mole of H2?
In one mole of H2, there are six electrons present. Two electrons are contributed by each hydrogen atom.
How many total valence electrons does NH4 have?
Technically, the concept of valence electrons applies only to individual atoms, not to molecules or ions such as NH4+. As atoms, each nitrogen atom has five valence electrons and each hydrogen atom has one valence electron, so that the ion could be said to have a total of nine valence electrons.
How many bonds and how many electrons in total does h2 share?
In an H2 molecule, each hydrogen atom shares one bond with the other hydrogen atom. This results in a total of 2 bonds and 2 electrons being shared between the two hydrogen atoms in the molecule.
What is the number of electrons in hydrogen?
There is one electron in a hydrogen atom. Hydrogen has 1 valence electron and is therefore very unstable by itself. Hydrogen is diatomic, which means that it naturally occurs bonded with another Hydrogen atom: H2
How many valance electrons in H2?
1
H2 Has how many protons neutrons and electrons?
A hydrogen-2 atom has 1 proton, 1 neutron, and 1 electron.
How H and H2 both can be elements?
H symbolises one hydrogen atom. H2 symbolises two hydrogen atoms bonded together or sharing electrons. They are the same because they contain only one type of atom: the hydrogen atom, one proton and one electron
How many electrons are needed to fill valence shell in hydrogen?
The atomic number for hydrogen (H) is 1 in the Periodic Table of Elements and it has that number of electrons (Valence & otherwise). Hence H2O for water since Oxygen O needs 2 electrons added to its valence electrons to make the stable compound WATER.
Is hydrogen written as a diatomic molecule?
Yes, hydrogen is written as an diatomic molecule (H2) as it forms stable molecules by sharing its electrons with another hydrogen atom.
How many atom hydrogen have?
Hydrogen normally is found as H2, which is a diatomic molecule.
IS H2 A ATOM?
No, H2 is not an atom. H2 refers to a molecule formed by two hydrogen atoms bonded together. An atom is the smallest unit of matter that retains the properties of an element.
