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,
Answer:
Explanation:
The octet rule does not always refer to a stable arrangement of eight valence electrons because there are some element that do not have eight valence electrons yet they are stable. for example;
i) Helium, It has two valence electrons and it is a stable gas.
ii) Boron triflouride (BF3); it has six valence electrons (deficit valence electron) yet it is also stable.
iii) Phosphorus pentachloride (PCl5); it has more than eight valence electron and it is also stable.
For these few reasons it is not always advisable to say octet arrangement refer to stable eight valence electrons.
IV is the temp, DV how high it bounces. You need to keep the amount of air in basket ball size constant.
All of the above. Halogens are extremely reactive. Their valency is -1 as they have 7 outer shell electrins and need 1 more to make it 8. They also react with metals to form salt. So the ans is (D)
Answer:
thermal radiation
Explanation:
Outgoing Long-wave Radiation (OLR) is electromagnetic radiation of wavelengths from 3–100 μm emitted from Earth and its atmosphere out to space in the form of thermal radiation. It is also referred to as up-welling long-wave radiation and terrestrial long-wave flux, among others.