Answer:
An ion is a charged atom or molecule. ... When an atom is attracted to another atom because it has an unequal number of electrons and protons, the atom is called an ION. If the atom has more electrons than protons, it is a negative ion, or ANION. If it has more protons than electrons,it is a positive ion.
I hope that helped!
Both because they both Carrie positive and negative charge
Light waves slow down as they enter the Earth's atmosphere from space. Light waves slow down as they enter and then speed back up once they reach Earth.
1) C because that is what's oxidized
2) correct
3) correct
4) is Fe+2 because that is reduced
5) I believe it is correct
6) correct
Answer:
12.973 liters of H2S is required at STP.
Explanation:
The given equation is ,
<em>2H2S + 3O2 --> 2SO2 + 2H2O </em>, mass of reacting<em> O2 is 27.8 g</em>
The mole ratio is,
![\frac{H2S}{O2} = \frac{2}{3}](https://tex.z-dn.net/?f=%5Cfrac%7BH2S%7D%7BO2%7D%20%3D%20%5Cfrac%7B2%7D%7B3%7D)
number of moles = m = ![\frac{mass of substance}{molecular weight of compound}](https://tex.z-dn.net/?f=%5Cfrac%7Bmass%20of%20substance%7D%7Bmolecular%20weight%20of%20compound%7D)
for O2, m =
(molecular weight of <em>O2 is 32</em>)
number of moles of H2S is
![(\frac{2}{3})(\frac{27.8}{32})](https://tex.z-dn.net/?f=%28%5Cfrac%7B2%7D%7B3%7D%29%28%5Cfrac%7B27.8%7D%7B32%7D%29)
now at STP, 1 mole of gas occupies 22.4 liters.
thus liters of H2S required are,
= 12.973 liters