The answer is 3.
That is if an atom has 5 electrons in its outer shell, then it has 3 unpaired electrons.
As the outer shell have 1 s orbital too and that is fully filled and not available for bonding so it must have 3 unpaired electrons.
So the number of unpaired electrons in an atom that is having 5 electrons in its outer shell is 3.
The number of protons must differ between two different elements
Answer:
C. Rate = k[H2]^2[O2]
Explanation:
Rate law only cares about REACTANTS. Since, rate law can only be determined experimentally, I am assuming the given reaction mechanism is elementary reaction from which we can write the rate law.
Only H2 and O2 are part of rate law since they are reactants and also the coefficient in front of H2 goes as exponent on rate law to indicate the order of H2 in the reaction.
Rate= k [H2]^2 [O2]
The Ph of tomato juice is calculated as follows
Ph = -log (H+)
if H+ ion concentration is 10^-4
Ph is therefore = -log (10^-4) =4
the tomato juice has a Ph of 4
Answer:
45g of NaCl x 1mole of NaCl/58.5g
= 0.769moles of Nacl
Now Looking at the equation
1mole of Nacl produces 1mole of AgCl
so
0.769mole of NaCl will produces the same Mole of AgCl(0.769)
So the Moles of AgCl produced = 0.769
Recall
Mole = Mass /Molar Mass
Mass = Mole x Molar Mass
Molar Mass of AgCl =108 + 35.5 = 143.5
Mass of Agcl = 0.769 x 143.5
=110.35g of AgCl