Answer:
Subbituminous coal can form at temperatures as low as 35 to 80 °C (95 to 176 °F) while anthracite requires a temperature of at least 180 to 245 °C (356 to 473 °F).
Sub-types: Cannel coal
Child material class: Lignite
Explanation:
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Answer:
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B. He would be considered an Organic Chemist since Organic Chemistry is the study of Carbon and its compounds.
Answer : The rate of the reaction if the concentration of
is doubled is, 0.006 M/s
Explanation :
Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.
The balanced equations will be:

In this reaction,
and
are the reactants.
The rate law expression for the reaction is:
![\text{Rate}=k[CH_3Br][NaOH]](https://tex.z-dn.net/?f=%5Ctext%7BRate%7D%3Dk%5BCH_3Br%5D%5BNaOH%5D)
As we are given that:
= concentration of
= 0.100 M
= concentration of
= 0.100 M
Rate = 0.0030 M/s
Now put all the given values in the above expression, we get:


Now we have to calculate the rate of the reaction if the concentration of
is doubled.
![\text{Rate}=k[CH_3Br][NaOH]](https://tex.z-dn.net/?f=%5Ctext%7BRate%7D%3Dk%5BCH_3Br%5D%5BNaOH%5D)


Thus, the rate of the reaction if the concentration of
is doubled is, 0.006 M/s