no of moles in 4 grams of H2=4/2=2
2H2+O2............2H2O
the reaction shows that 2 moles of H2 react with 1 mole of O2 to produced 2 moles H2O
now no of moles in 36grams of H2O=36/18=2
therefore he needed 1 mole of O2 to produce 36 grams of H2O and 1 mole of oxygen is equal to 32 grams of O2
Adding an atom affect the position of existing atoms and lone pairs by changing the geomertry and <span>changing postion of the lone pairs and atoms so that they are furthest apart. Hope this answers the question. Have a nice day.</span>
The acid yields H+ ions while the base yields OH- ions
To balance the nuclear reaction following rules are following:
1. The sum of the subscript means the atomic numbers must be equal on the both side of the equation.
2. The sum of the superscript means the mass numbers must be equal on the both side of the equation.
94 Pu 239 ------> x+ 2He4
The mass number:
239 = A+4
A= 235
The atomic number:
94 = Z+2
Z= 92
Thus the balanced nuclear reaction is as follows:
94 Pu 239 ------> 92U235+ 2He4
The element sodium (Na) in the periodic table requires the least amount of energy to remove the most loosely held electron.
<h3>What is the trend of sodium?</h3>
The periodic table is the arrangement of the elements based on their physical and chemical properties.
The sodium element requires the minimum energy to eliminate the electron from its outer shell.
The sodium element has low nuclear energy and small size making the shielding effect to be negligible.
The loss of an electron from the outer shell results in the achievement of a stable configuration.
Thus, sodium requires the least energy.
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