Molecular compounds are usually exceptions to the law of definite proportions composed of two or more transition elements composed of two or more nonmetallic elements composed of positive and negative ions

The answer is composed of two or more non-metallic elements. Molecular compounds hold two or more nonmetals. Typically you can identify you are dealing with a molecular compound for the reason that the first element in the compound name is a nonmetal. 

Naming and Writing Formulas for Molecular Compounds Quiz

A

B

A

C

C

D

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml