Answer:
Carbon Monoxide / Carbon Dioxide / Sulfur and Nitrogen Dioxide
Explanation:
The most appropriate answer is B !!
Covalent bond is formed by sharing of electrons !!
Answer:
The new pressure is 3850 torr.
Explanation:
The relation between volume and pressure is inverse as per Boyle's law. Its mathematical form is given by :

Here,



Let
is the new pressure. So using Boyle's law we get :

or

So, the new pressure is 3850 torr.
Answer:
544.522 Hours
Explanation:
a) Mass = 12.5 kg = 12500 g
Now, Number of moles is given as
No of moles = Mass of Cr / Molar mass of Cr

= 240.38 moles
3 mols of electrons are required

Converting moles of e- to coulombs of charge, (1 mol of electrons = 96500 C )
Q =721.14 mol×96500 C/mol
=69590010 of charge
We know that, Q = I×t
where Q is charge, I is current and t is time required.


=196281.97 seconds

=544.522 Hours
2K + Br₂ = 2KBr
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