Answer:
The correct answer is the final pair: C4H10 and C2H5
Explanation:
Took the test and it was right. :)
The top number on elements in the periodic table is the atomic number, so when you look at the periodic table you can see that 42 is Mo (Molybdenum), and this is the only element with that atomic number.
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Answer:
C) second
Explanation:
According to the law of mass action:-
The rate of the reaction is directly proportional to the active concentration of the reactant which each are raised to the experimentally determined coefficients which are known as orders. The rate is determined by the slowest step in the reaction mechanics.
Order of in the mass action law is the coefficient which is raised to the active concentration of the reactants. It is experimentally determined and can be zero, positive negative or fractional.
The order of the whole reaction is the sum of the order of each reactant which is raised to its power in the rate law.
The reaction rate increased by 9 times when the concentration of B is tripled it means that:-
R = [B]²
[B'] = 3[B]
R' = (3[B])² = 9[B]² = 9 R
The order is 2.
