Answer:chemistry is a subject that deals with composition of substances and of the changes which they undergo in consequences of alteration in the constitution of molecules which depend upon variation of the number, kind or mode of arrangement of the constituent atom while biology deals with characteristic life processes and phenomena of living organisms
Explanation
Answer : The correct option is, (D) CO₂, BCl₃, and Fe³⁺
Explanation :
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
(a) 
It is a Lewis-acid because it can accepts electron pairs.
(b) 
It is not a Lewis-acid because it can not accepts electron pairs but it is a base because it can donates and accept hydrogen ion.
(c) 
It is a Lewis-acid because it can accepts electron pairs because it has an incomplete octet and an empty 2p orbital.
(d) 
It is a Lewis-acid because it can accepts electron pairs.
Hence, the ions which behave as Lewis acids are, CO₂, BCl₃, and Fe³⁺
Its b) reactant and the chemical energy of the
Facilitated diffusion is your answer
I THINK this is the answer: 4809.35999999786. (found it on a website)