An electrolytic cell where electrolysis occurs which consists of an electrolyte where current from an outside source is passed through in order to produce an electrochemical cell.
Answer:
Ans A
Explanation:
no. of shells determine the group
The relative atomic mass of Boron in trimethyl borate [(CH3O)3B] is; 10.8
<h3>Isotopes and Relative abundance</h3>
According to the question;
- Since, ¹¹B is 4 times more abundant than ¹⁰B;
The relative abundance of Boron in the spectrum is;
Relative atomic mass = (80% of 11) + (20% of 10)
Hence, the relative atomic mass of Boron in trimethyl borate [(CH3O)3B] is; 10.8
Read more on Isotopes;
brainly.com/question/14220416
We are given with
Lattice energy = <span>671.0 kJ/mol
Heat of solution = 19.9 kJ/mol
Heat of hydration = lattice energy + heat of solution
Heat of hydration = </span><span>671.0 kJ/mol + 19.9 kJ/mol
Heat of hydration = 690.9 kJ/mol</span>
Answer:
b) Product
c) Combustion
c) speeds up the rate of reaction
Explanation:
the substance produced by a chemical reaction is called a product (b)
Combustion (c) reactions are involving oxygen and "another substance" [and hydrocarbons] to <em>produce carbon dioxide and water</em>.
A <em>catalyst </em>acts to speed up the rate of a reaction (c)
<em> > note </em><em>how it "speeds up" reaction: , it [a catalyst] lowers the pressure or temperature needed to start one--but it isn't used/consumed in the reaction</em>
So, the answers are: b, c, c
hope this helps!!