Answer:
a. 1
Explanation:
Radon is a member of group 18. It is an odorless heavy gas, that emanates from materials that contain uranium.
Rn is a decay product of 226-Ra, a member of the uranium decay series. The spontaneous decay of Rn decay leads to the emission of an alpha particle.
Rn has a half-life of about 3.8 days and its decay product is 218Po.
The best and most correct answer among the choices provided by the question is the second choice. The activities in the ring of fire are mainly caused by t<span>he movement of mantle rock through the cracks between tectonic plates.</span> I hope my answer has come to your help. God bless and have a nice day ahead!
<span>Dried fruits and raisins get terribly soggy after being drenched in milk for a long period of time. They act like a sponge, absorbing all of the milk up making them wet and "soggy". I prefer them to be like that when I eat my cereal in the morning.</span>
Answer :
(a) The average rate will be:
(b) The average rate will be:
Explanation :
The general rate of reaction is,
Rate of reaction : It is defined as the change in the concentration of any one of the reactants or products per unit time.
The expression for rate of reaction will be :
From this we conclude that,
In the rate of reaction, A and B are the reactants and C and D are the products.
a, b, c and d are the stoichiometric coefficient of A, B, C and D respectively.
The negative sign along with the reactant terms is used simply to show that the concentration of the reactant is decreasing and positive sign along with the product terms is used simply to show that the concentration of the product is increasing.
The given rate of reaction is,
The expression for rate of reaction :
Thus, the rate of reaction will be:
<u>Part (a) :</u>
<u>Given:</u>
As,
and,
<u>Part (b) :</u>
<u>Given:</u>
As,
and,
D. electro magnetic waves. it’s literally in the name