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Balance the reactions below using the change in oxidation number method.
- PbO2+HBr-PbBr2+O2+H2O
- PbO+NH3-Pb+N2+H2O
- KBr+KCIO2+H2SO4-Br2+KCI+K2SO4+H20
- BR^- +CIO^- +H^+ - Br2+CI^- +H20
- SN^2+ +VO4^3- +H^+-- SN^4+ +V^2+ + H20
_______ is a variable in Arrhenius equation. *
a. reactant concentration
b. order of reaction
c. reaction rate
d. temperature
___________ provides a linear equation that allows for the calculation of the concentration of a reactant at a specific time in the reaction. *
a. Chemical kinetics
b. Arrhenius equation
c. Integrated rate law
d. catalysts
Random samples of size N=2 are drawn from a finite population consisting of the number 5,6,7,8, and 9. Compute for the mean, Variance,and Standard deviation, and also the mean, Variance, and the Standard deviation of the sample mean
Reaction rates can be explained using the concepts of collision theory and __________.
a. Arrhenius equation
b. Chemical kinetics
c. activation energy
d. progress of reaction
A reaction mechanism may occur in two or more elementary steps. The slowest among these steps is the _____________.
a. reaction intermediate step
b. overall reaction
c. rate - determining step
d. reaction rate
Reaction rates are affected by reactant concentration and _________.
a. time
b. temperature
c. collision
d. activation
Write a python script that checks if integer numbers between 1 and an integer input from a user are prime numbers (Hint: use the range function to loop between 0 and an integer input).
In a case where prime numbers are identified then add all prime numbers to a new list and display the list, in case where a number is not a prime number display an error message.
Economic theory suggests that two countries can benefit from trade even if one country is more efficient at producing everything. What concept does this theory describe?
A particle with the same charge as an electron experiences a force of 5.2 × 10-12N and traveling at a speed of 4.21 × 107m/s at right angles to a magnetic field. a. How strong is the magnetic field? b. What does its acceleration if its mass is 1.88 × 10-28 kg?
What are the advantages and disadvantages of conceiving sustainable development as a dialogue of values?
Suppose you have a circular coil with a radius of 7 cm that has 50 loops. The way it is oriented makes it form magnetic field lines normal to the area of the coil. If the magnetic field changed from 0.10 T to 0.75 T in 3 milliseconds, what is the average EMF induced in the coil?
#340153 on Dec 2023