The answers are;
2H2+O2===>2H2O
N2+3H2==>2NH3
C3H8+5O2==>4H20+3CO2
CH4+2O2===>CO2+2H2O
2HBr +Fe==>FeBr2 +H2
I hope it helped
<span>The region(s) of the periodic table which are
made up of elements that can adopt both positive and negative oxidation numbers
are the “non-metal” region. As we can see on the periodic table, the elements situated
at the right side of the table have two oxidation states, one positive and the
other a negative. </span>
<u>Answer:</u> The number of electrons in given amount of silver are ![1.839\times 10^{24}](https://tex.z-dn.net/?f=1.839%5Ctimes%2010%5E%7B24%7D)
<u>Explanation:</u>
The number of moles is defined as the ratio of the mass of a substance to its molar mass.
The equation used is:
......(1)
We are given:
Mass of silver = 7.0 g
Molar mass of silver = 107.87 g/mol
Putting values in equation 1:
![\text{Moles of silver}=\frac{7.0g}{107.87g/mol}=0.0650 mol](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20silver%7D%3D%5Cfrac%7B7.0g%7D%7B107.87g%2Fmol%7D%3D0.0650%20mol)
According to the mole concept:
1 mole of a compound contains
number of particles.
Number of electrons per atom of silver = 47
So, 0.065 moles of silver will contain =
number of electrons
Hence, the number of electrons in given amount of silver are ![1.839\times 10^{24}](https://tex.z-dn.net/?f=1.839%5Ctimes%2010%5E%7B24%7D)
Answer: I’m pretty sure your answer is B
Explanation: