Answer:
A). Trial 1, because the average rate of the reaction is lower.
Explanation:
The first sentence elaborates that 'trial 1 had a lower level of concentration of the reactant that eventually led the reaction's average rate to fall.'
A trial having a higher level of concentration of a specific reactant will cause the concentration's average rate to rise. As per the graph provided, trial 2's average reaction rate is higher which shows that its concentration is greater and more reactive. However, the opposite happens in trial 1 where the amount of reactant is lesser in the concentration that leads the concentration to possess a lower rate of reaction. Thus, <u>option A</u> is the correct answer.
The concentration of in the stack gas = 12 ppmv
That means 12 L of is present per
The given temperature is 273 K (0 C) and pressure is 1 atm. At these conditions, 1 mol of gas would occupy,
V = 22.4 L
1 mol occupies 22.4 L
Moles of =
Mass of = =μg
Converting :
=
Calculating the concentration in μg/:
The correct answers are:
17. All of the above
18. hydrogen gas and oxygen gas
19. <span>deposition of a metal layer on a material</span>
Electrolytic cells use electric currents to drive a non-spontaneous reaction forward. This is also used in electroplating which involves the movement of metal cations to the surface of another metal. Water can also undergo electrochemical reactions by splitting it into its gaseous components, hydrogen and oxygen.
Answer:
Speeding up: graph 6
Slowing down: graph 1
Fast Constant Speed, forward: graph 2
Slow constant speed, forward: graph 5
Fast constant speed, Backward: graph 4
Slow constant speed, Backward: graph 7
Sitting still: graph 3
(Im not 100% but this makes the most sense i think)