<u>Answer:</u> The percent composition by mass of hydrogen in given compound is 6.33 %
<u>Explanation:</u>
We are given:
A chemical compound having chemical formula of ![NH_4HCO_3](https://tex.z-dn.net/?f=NH_4HCO_3)
It is made up by the combination of 1 nitrogen atom, 5 hydrogen atoms, 1 carbon atom and 3 oxygen atoms
To calculate the percentage composition by mass of hydrogen in the compound, we use the equation:
![\%\text{ composition of Hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of compound}}\times 100](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20composition%20of%20Hydrogen%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20hydrogen%7D%7D%7B%5Ctext%7BMass%20of%20compound%7D%7D%5Ctimes%20100)
Mass of compound = ![[(1\times 14)+(5\times 1)+(1\times 12)+(3\times 16)]=79g/mol](https://tex.z-dn.net/?f=%5B%281%5Ctimes%2014%29%2B%285%5Ctimes%201%29%2B%281%5Ctimes%2012%29%2B%283%5Ctimes%2016%29%5D%3D79g%2Fmol)
Mass of hydrogen = ![(5\times 1)=5g/mol](https://tex.z-dn.net/?f=%285%5Ctimes%201%29%3D5g%2Fmol)
Putting values in above equation, we get:
![\%\text{ composition of Hydrogen}=\frac{5g/mol}{79g/mol}\times 100=6.33\%](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20composition%20of%20Hydrogen%7D%3D%5Cfrac%7B5g%2Fmol%7D%7B79g%2Fmol%7D%5Ctimes%20100%3D6.33%5C%25)
Hence, the percent composition by mass of hydrogen in given compound is 6.33 %
<span>The correct answer is that an ionic bond forms between charged particles. To form this bond, the particles transfer valence electrons (those in the outermost orbit). Specifically, in ionic bonding, the metal atom loses its electrons (thus becoming positive) and the nonmetal atom gains electrons (thus becoming negative).</span>
Answer:
Reduction
Explanation:
The oxidation reduction reactions are called redox reaction. These reactions are take place by gaining or losing the electrons and oxidation state of elements are changed.
Oxidation:
Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.
Reduction:
Reduction involve the gain of electron and oxidation number is decreased.
In given reaction fluorine gas gain two electron and form fluoride ions.
F₂(g) + 2e⁻ → 2F⁻(aq)
The given reaction is reduction because oxidation state is decreased from zero to -1.
Malleability described the property of physical deformation under some compressive stress; a malleable material could, for example, be hammered into thin sheets. Malleability is generally a property of metallic elements: The atoms of elemental metals in the solid state are held together by a sea of indistinguishable, delocalized electrons. This also partially accounts for the generally high electrical and thermal conductivity of metals.
In any case, only one of the elements listed here is a metal, and that’s copper. Moreover, the other elements (hydrogen, neon, and nitrogen) are gases under standard conditions, and so their malleability wouldn’t even be a sensible consideration.
<span>The Iridium satellite
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discovered by Bary Bertiger, Rey Leopold and Ken Peterson in 1987 and then
developed by Motorola from 1993 to 1998.</span>