# a certain reaction has the following generaln form

73,810 results, page 46

### chemistry

Calculate the value of the equilibrium constant (Kp) for the reaction displayed if the following equilibrium pressure data were measured at 25.00 °C: P(H2(g)) = 0.2282 atm, P(I2(g)) = 0.1646 atm, P(HI(g)) = 5.462 atm. H2(g)+I2(g) = 2HI(g)

### Chemistry Question

Calculate the ∆G˚ for the oxidation of nickel in the following balanced reaction. 2[RhCl6]3-(aq)+ 3Ni a 2Rh(s) + 3NiCl2(aq) + 6Cl-(aq) E˚ for RhCl6 is 0.5V E˚ for Ni(s) is -0.25V

### CHEMISTRY

Materials -sandwich-sized plastic ziplock bag -graduated cylinder -paper cup -rubber band -measuring spoons -vinegar -baking soda -twist-tie (like the closure for a loaf of bread) Part 1: The Reaction 1.Use the paper cup during this part of the experiment. 2.Measure out 25.0 ...

### PSYCHOLOGY am i correct

The following table describes five situations in which a person reacts to stress in an unhealthy manner. For each: a. identify the stressor(s). b. briefly explain why the person's reaction is an unhealthy choice. c. briefly describe one healthy alternative way of reacting and ...

### Chem

If I were to use dichromate and add HCL and Ba(NO3)2 and NaOH , what should form? Im thinking the Ba(NO3)2 would still form a precipitate but im not too sure about everything else

### Chem

If I were to use dichromate and add HCL and Ba(NO3)2 and NaOH , what should form? Im thinking the Ba(NO3)2 would still form a precipitate but im not too sure about everything else

### STAT

The probability of getting a certain disease is 0.2. A certain test is available which returns a positive result 90% of the time for those with the disease, and a negative result 75% of the time for those without the disease. Compute Pr{Test positive | No disease}. (Hint: It ...

### science

humidity is the amount of water vapor in the air at a given time.if the air at 75 degrees holding the maximum amount of moisture that it can,and the temperture suddenly drops to 60degrees,what is likely to be the result? a)precipitation will be released in the form of hail. b)...

### STAT Help Please!

The probability of getting a certain disease is 0.2. A certain test is available which returns a positive result 90% of the time for those with the disease, and a negative result 75% of the time for those without the disease. Compute Pr{Test positive | No disease}. (Hint: It ...

### Chemistry - Equilibrium

(h) If a catalyst was added to the reaction, which quantities would change? (Select all that apply.) - the potential energy of the products - the potential energy of the reactants - the potential energy of the activated complex -the activation energy for the reverse reaction...

### math

The large red equilateral triangle has sides of 8x units. The midpoints of the red triangle are joined to form the blue triangle. The midpoints of the blue triangle ate joined to form the green triangle. The process of joining midpoints to form new triangles continues ...

### Government

Can someone please check my answer for me I'm having trouble on my government practice test. Which of the following is an example of checks and balances? A) Congress can override a presidential veto by two-thirds veto in each house. B) The legislative and Judiciary work ...

### HELP MEH PLS

Marie and Pierre Curie coined which term to describe the ability of certain elements to give off radiation spontaneously? AM signals travel as changes in ____ Why does the wave of light bend toward the normal as it enters water? The Curies discovered which two elements? Light ...

### Chemistry-DrBob222

I got 62.9 mL. Is this correct? I think HCl is the LR. A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) + H2 (g) What volume of hydrogen gas (in mL) is collected over water at 25 degrees Celsius by ...

### college chem

Two questions where I have to write a balanced net ionic equation. 1. Write a balanced net ionic equation for the reaction that occurs when aqueous solutions of sodium chromate and silver nitrate are mixed 2. Write a balanced net ionic equaion reaction for the acid-base ...

### chemistry

A 0.0583 mol sample of formaldehyde vapour, CH2O, was placed in a heated 0.359 L vessel and some of it decomposed. The reaction is CH2O(g)---> H2(g) + CO(g). At equilibrium, the CH2O concentration was 0.0449 M. What is the value of Kc for this reaction? my answer was 0....

### Chemistry

A <---> 2B + C at a certain temperature the equilibrium pressure of the system is 0.318atm. Determine Kp for this reaction. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2B + C = 0.318atm /3 = 0.106 CO2 = 0.106 atm NH3 = 2(1.06) atm =0.212 atm Kp = PNH3 ^2 x PCO2 kp = 0.212^2...

### Chemistry

This is a three part problem I need help in figuring out pleaseI n each of the questions below you are going to determine a different type of balanced equation for the same reaction. Make sure your equations have the lowest whole number coefficients possible. Indicate the ...

### Chemistry

This is a three part problem I need help in figuring out pleaseI n each of the questions below you are going to determine a different type of balanced equation for the same reaction. Make sure your equations have the lowest whole number coefficients possible. Indicate the ...

### Chemistry

A 1.50-g mixture of the solid salts Na2SO4(molar mass 142.04 g/mol) and Pb(NO3)2(molar mass 331.20 g/mol) forms an aqueous solution with the precipitation of PbSO4 molar mass 303.26 g mol The precipitate was filtered and dried, and its mass was determined to be 0.392 g.The ...

### English

Identify the prepositional phrases in the following sentences. 5. Seven very bright stars surrounded by dust form the Seven Sisters. PP=By dust Is this right?!?!?!

### Spanish

Are these correct? 'Write the time in sentence form in Spanish for each of the following:' 1:15- una y cuarto 4:45- Son las cinco menos cuarto 7:10- siete y diez Thanks -MC

### Calculus 2

The following function has a series of the form the sum from n=0 to infinity of c(subn)x^n. Calculate the coefficients c(subn) and express the power series in summation notation. f(x)=(pi*x)/(pi*x+1) Thank you so much for your help!!!!

### Physics

Consider the following standing wave, (all units are SI) z=0.2sin(0.4y)cos(350t) (a) The values of t where the displacement at all values of y equals to zero are of the form : t=c+dn, where n=0,±1,±2,3, etc. What is c? What is d?

### Pre-Calculus

Help Please Solve the following system of equations. Round your answers to the nearest tenth. Your answer will be in the form: (M,N). Find M + N, rounded to the nearest tenth. 5x+2y=7 -2x+6y=9

### insurance form preparation

What form should be attached to a CMS-1500 form submitted to a secondary insurance company? A. a copy of the CMS-1500 sent to the primary insurance company. B. An Explanation of Benefits (EOB) C. a copy of the patient's medical treatment record. D. a copy of the patient's ...

### math/statistics

Could anyone explaint to me what role the Binomial Theory plays in statistics and probability? Using statistics, we can make statements about a population based on sample data. Probability helps us make those statements. The binomial theory can be used to determine ...

### physics

I need some help with determining the equation for this problem. "The block of mass m is released from rest on the frictionless incline. After sliding a certain distance, it compresses a spring and comes to rest at a distance of y beneath its original position. How much energy...

### Pre-Calc

A piece of wire 100 cm long is cut into two pieces. One piece is bent to form a square and the other to form a circle. Let x equal the length of the wire used to form the square. A. write the function that represents the area of the two figures B. determine the domain of the ...

### Chemistry

For a particular reaction, ΔH = -328.21 kJ and ΔS = 98.7 J/K. Calculate ΔG for this reaction at 298 K.

### math

The large red equilateral triangle has sides of 8x units. The midpoints of the red triangle are joined to form the blue triangle. The midpoints of the blue triangle ate joined to form the green triangle. The process of joining midpoints to form new triangles continues ...

### CHEMISTRY> HELP QUICK! pls

1. The rate of a chemical reaction may be defined as: a) The speed at which a molecule travels from point A to point B. b) The change in concentration of reactants or products per unit time. c) The change in concentration of reactant divided by change in concentration of ...

### Chemistry

Would it be correct to say that it is harder for a weak electrolyte to dissociate in a solution than it is for a stronger electrolyte to dissociate? If a weak electrolyte can't dissociate completely it wouldn't be able to form an equilibrium reaction right? yes Second question...

### Chemistry

At 2000°C, 5.0×10-3 mol CO2 is introduced into a 1.0 L container and the following reaction comes to equilibrium: 2CO2(g) <-> 2CO(g) + O2(g) Kc = 6.4×10-7 a. Calculate the equilibrium concentrations of CO and O2. b. What fraction of the CO2 is decomposed at ...

### chemistry

A researcher put 10.0 moles of N2O into a 2-L container at some temperature where it decomposes according to the following: N2O = 2N2+ O2. At equilibrium 2.20 moles of N2O remain. Calculate the Kc for the reaction.

### chemistry

A researcher put 10.0 moles of N2O into a 2-L container at some temperature where it decomposes according to the following: N2O = 2N2+ O2. At equilibrium 2.20 moles of N2O remain. Calculate the Kc for the reaction.

### chemistry

For the following reaction KClO2->KCl+O2 assign oxidation states to each element on each side of the equation. Reactants K=? Cl=? O=? Which element is reduced? I got K=5, Cl=-1, and O=-4 . The element that reduced is K, but its says its wrong. Help, Please!

### Chemistry

Calculate the delta G of the reaction using the following information. 4HNO3+ 5N2H4 --> 7N2+ 12H2O Delta H(Kj/mol) -133.9 50.6 0 -285.8 Delta S(J/mol x K) 266.9 121.2 191.6 70.0

### chemistry

Which equation describes the relationship between the rates at which Cl2 and F2 are consumed in the following reaction? Cl2(g) + 3F2(g) yield 2ClF3(g) a)-d(Cl2)/dt = -d(F2)/dt b)-d(Cl2)/dt = 2[-d(F2)/dt] c)3[-d(Cl2)/dt] = -d(F2)/dt d)2[-d(Cl2)/dt] = -d(F2)/dt e)-d(Cl2)/dt = 3...

### chemistry

What is the general form for the simplest type of acid-base reaction? A. acid + base salt + water B. acid + base base + acid C. acid + base H+ + OH- D. acid + base solid + water

### Chemistry

What type of reaction may be occurring when a person's skin develops a green stain beneath a 14 K gold bracelet? Using HA as the chemical formula for acid in skin, write a balanced chemical equation to represent the reaction.

### CHEM- KINETICS

The rate constant for a reaction is 4.65 L mol-1s-1. The overall order of the reaction is: zero first second third I am having trouble with the order of reactions. I don't understand this question. this is an assignment question but i have no idea how to do it.

### chemistry

A 2.30 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 20.0 percent of the NOCl had dissociated: 2NOCl(g) 2NO(g) + Cl2(g) Calculate the equilibrium constant Kc for the reaction.

### mechanics

a non uniform rod ab of length 4 m and mass 5 kg is in equilibrium in horizontal position resting on two supports at point C and D wgere AC= 1 m and AD= 2 m. the magnitude of reaction at C is half of the reaction at D. Find the distance of the centre of mass of the rod from A

### chemistry

The rate constant of the reaction between CO2 and OH - in aqueous solution to give the HCO3- ion is 1.5 1010 1/(M·s) at 25°C. Determine the rate constant at blood temperature (37°C), given that the activation energy for the reaction is 38 kJ/mol. units 1/(M·s)

### chemistry

Write the equations describing the electrode reactions and the net cell reaction for this electrochemical cell containing indium and cadmium: This is what I have so far: anode: In(s) --> In^3+ + 3e- cathode: Cd^2+ + 2e- --> Cd (s) Need help writing the balanced net ...

### Chemsitry

Consider the equilibrium A(g)=2B(g)+3C(g) at 25 degrees Celsius. When A is loaded into a cylinder at 10 atm and the system is allowed to come to equilibrium, the final pressure is found to be 12.13 atm. What is the standard gibbs free energy of reaction for this reaction.

### algebra

Can someone help me solve this: Decide all values of b in the following equations that will give one or more real number solutions. (a) 3x^2+bx-3=0 (b) 5x^2+bx+1=0 (c) -3x^2 +bx-3=0 (d) write a rule for judging if an equation has solutions by looking at it in standard form.

### Medical Terminology

You're asked to change plural medical words to the singular form. Which of the following combinations represents the correct conversion? A. Criterion, criteria B. Bacteria, bacterium C. Lumen, lumina D. Ganglion, ganglia

### chem+Acid-Base Reactions

Hey..can you check this for me. It has to do with Predicting Acid-Base Reactions. So here it is: I have to: Predict the most likely acid base reaction(s) that occur. For each reaction, state if the reaction is quantitative, or, if not, state whether products or reactants are ...

### chem 1A

Balance the following oxidation-reduction reactions, which occur in acidic solution, using the half-reaction method. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.) (a) Cu(s) + NO3‾(aq) → Cu2+(aq) + NO(g)

### CHEM 1A

Balance the following oxidation-reduction reactions, which occur in acidic solution, using the half-reaction method. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer. H3AsO4(aq) + Zn(s) → AsH3(g) + Zn2+(aq)

### Enlgish

Explain how the following visuals could influence your reaction to a news story. Video footage of refugee camp, in which thousands of people are living in tents and suffering from lack of food and medical care. A photograph of a politician in handcuffs being led away by the ...

### chemistry

For the reaction H2(g) +S(s)->H2S(s), Triangle H= -20.2 kJ and triangle S= 43.1 J/K. WHen will the reaction be spontaneous? I know that it has to be negative to be spontaneous but i don't exactly know how to answer this question.

### chemistry

In an exothermic reaction, delta H was found to be -40 kJ, and the activation energy to be 30 kJ. What would be the activation energy of the reverse reaction?

### chemistry-lab

2.What does it mean to “follow the course of a reaction”? I would imagine it means to find the overall order of the reaction and make it in to a rate law equation. That's part of it. It can mean, in addition, to knowing any intermediates formed and how they react/decompose...

### Organic Chemistry

Does anyone know where I might find a step-by-step reaction mechanism for a polymer condensation reaction involving Hexamethylenediamine with Adipoyl Chloride (thus synthesizing Nylon 66)? If not, can anyone help list the steps that take place and why? Any help would be ...

### organic chem

what are some chemical reasons that might have resulted in a lower yield of a product on a grignard reaction. Something related to grignards being very reactive and since its the limiting reagent, any reaction that destroys it will result in a hit in yield.

### Chemistry

What volume of gas can be produced in a lab where pressure is 16.0 psi and temperature is 25 C if you collect it over water from the reaction of 50g of ammonium sulfate with 50g of aluminum hydroxide. The equation for the reaction is: 3(NH4)2SO4 + 2Al(OH)3 ---> Al2(SO4)3 + ...

### Maths

How many silver coins ,2cm in diameter and of thickness 2mm,must be melted to form a showpiece in the form of frustum of a cone having height 9cm and radii of outer circular ends as5cm 3cm

### Language arts

Why are the elements of an autobiographical similar to those of a short story? because the form is about from events in a writer's life*** because most writing forms include narratives because it includes causes and effects because the form is nonfiction

### Chemistry

Identify the spectator ion(s) in the following reaction: Cu(OH)2(s) + 2H+(aq) + 2Cl–(aq) Cu2+(aq) + 2Cl–(aq) + 2H2O(l) a. Cu2+ and Cl- b. H+ and Cl– c. Cu(OH)2 d. Cl– e. Cu2+

### Chemistry

Identify the spectator ion(s) in the following reaction: Cu(OH)2(s) + 2H+(aq) + 2Cl–(aq) ---> Cu2+(aq) + 2Cl–(aq) + 2H2O(l) a. Cu2+ and Cl- b. H+ and Cl– c. Cu(OH)2 d. Cl– e. Cu2+

### chemistry

The Equilibrium Constant Kp for the following reaction is 4atm^2 at 300K. AB(s) -> A(g) + B(g) What is the equilibrium pressure of A(g) and B(g) above AB(s) at 300K? What is Kc at 300K?

### Chemistry

Consider the following reaction: Al + HBr ---> AlBr3 + H2 . When 4 moles of Al reacts with 3 moles of HBr, how many moles of H2 are formed?

### chemistry

Try to balance the following reactions by inspection. In each reaction, identify the substance reduced and the substance oxidized. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) (a) CH4(g) + S(s) ¨ CS2(l) + H2S(g)

### chemistry

Given the following list from the activity se- ries of metals (from most active to least ac- tive) K, Na, Al, Mn, Cr, Cd, Co, Pb, Hg which reaction would you NOT expect to oc- cur? 1. Na(s) +Mn2+(aq) ! Na+(aq) +Mn(s) 2. Co2+(aq) + Al(s) ! Al3+(aq) + Co(s) 3. Cd(s) + Pb2+(aq...

### com

Post a 175- to 225-word response to the following question · A good paragraph has three key parts, one of which is a topic sentence. What do you think would be the reaction of a reader if the topic sentences in an essay did not align with the supporting points? Why?

### chemistry

Equillibrium, an example given by my textbook confused me. First it shows a reaction inside a soft drink: co2(g)--><--co2(aq) but than it says the reaction inside a soft drink would involve solubility equillibrium because it involves a change in solubility between ...

### Criminal Justice/White Collar Crime

Certain industries are distinguished by means and opportunities that are conducive to crime. These factors include all of the following EXCEPT: A. large amounts of money changing hands. B. individual decision-making. C. public attention on business activities of industry. D. ...

### English

This is a chemistry lab report, but I was wondering if someone could edit the grammar and look at the sentence structure, etc. I know it's really long and boring, but even if you just look over a bit of it, I would really appreciate it. And I'm assuming you don't really know ...

### Chem

The brown color associated with photochemical smog is due to NO2(g). This is involved with the following equilibrium in the atmosphere: 2 NO2(g) <===> N2O4. Predict the signs of the enthalpy and entropy changes for this reaction. If the equation is at equilibrium should ...

### Biophysical Chemistry

The combustion of 1 mole of C2H5OH (Ethanol) in a bomb calorimeter produces 1364 kJ/mol at 25 degree Calcium. What is the value of enthalpy chamge for the following combustion reaction? C2H5OH(l) + 3O2(g) => 2CO2(g) + 3H2O(l)

### chemistry

when magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction: 2KClO3→ 2KCl + 3O2 when 3.50 grams of potassuim chlorate is decomposed at STP, how many litters of oxgen will be produced?

### chemistry

magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction: 2KClO3 → 2KCl + 3O2 when 3.50 grams of potassuim chlorate is decomposed at STP, how many litters of oxgen will be produced?

### algebra

Rewrite into standard form (0,5), m=-3/5. Write the equation of the line passing through each of the given pairs of points. Write the answer in slope-intercept form, where possible. (2,-3) and (2,4)

### Algebra

Rewrite into standard form (0,5), m=-3/5. Write the equation of the line passing through each of the given pairs of points. Write the answer in slope-intercept form, where possible. (2,-3) and (2,4)

### math

multiply 3 1/6 x 9/11 x 6/17 and write it in its simplest form would that make the answer 513/561? then to break it down into it simplist form it would be 171/187 correct?

### Pre-Calculus

convert to the alternate form to exponential form. a) 5^4=625 b) e^x=y c) log.001=x I really need help on these problems i have no idea how to do it? pls help me i need to study for it on my exam.

### Math Calculus I

let f(x)= 6sin(x)/(2sin(x)+6cos(x)) The equation of the tangent line to y= f(x) at a= pi/6 can be written in tthe form y=mx+b where m=? b=? I found the f': (9*(cos^2(x)+sin^2(x)))/(3cos(x)+sin(x))^2 but i don't know how to fill it into the form. Can anyone help me? Thanks you

### Maths

Convert the complex no. In polar form : 1-i rcosΘ =1 rsinΘ=-1 r=√a2+b2 r=√(1)2+(-1)2 r=√2 TanΘ=b/a =1/-1 =-1 After all this what i have to do to find out value of Θ? Please help me.. For polar form, =r(cosΘ+isinΘ)

### PRACTICAL EXERCISE LOCAL STANDARDS AND REGULATIONS

2. Mrs. Carroll and Ms. Howard decide to divide all profits and share all losses using a fixed ratio. If the ratio agreed upon is in proportion to their original investment, what would be Ms. Howard’s share of a $60,000 end-of-year profit? (Hint: The original total ...

### English

All of the following common nouns except a.emotion b.leader. c.tablet. d.Kindle. I am think D. Singular or plural nouns a.refer to whether a noun is singular or plural. b.can usually be changed in number by adding or deleting -s or-es. c.sometimes use the same form or both ...

### chemistry(check my answer)

Which equation describes the relationship between the rates at which Cl2 and F2 are consumed in the following reaction? Cl2(g) + 3F2(g) yield 2ClF3(g) a)-d(Cl2)/dt = -d(F2)/dt b)-d(Cl2)/dt = 2[-d(F2)/dt] c)3[-d(Cl2)/dt] = -d(F2)/dt d)2[-d(Cl2)/dt] = -d(F2)/dt e)-d(Cl2)/dt = 3...

### Economics

Considering supply and demand, what happens to each of the following things when the U.S. is under the recssion? a.) Full employment product output: b.) Price level for goods: It goes down until a certain price level at which consumers realize goods are cheap and start buying ...

### math,correction

Find the area of the rectangle shown in the figure. length = radical (3) + radical (5) width = radical (3) + radical (5) My answer: a= 8 + 2 radical (15) or a = 15.75 agree, you seem to be able to do these should i leave it as the radical form or the decimal form which is more...

### math

How would I change this problem from standard form to vertex form? The problem is: y+6x-16

### Algebra 2

(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

### Math Plz Correct Me!!

Which ratios form a proportion? 3/15, 12/55 8/24, 12/35 5/18, 25/90•• 4/11, 16/25 Which ratio form a proportion with 9/15? 6/10 16/21 36/50•• 45/70

### physics

A body is dropped from a height of 10 meters on Earth and hits the ground with a certain velocity. The body is then taken to the moon, which has a gravitational constant that is 1/6th the value as compared to Earth. It is dropped from the same height, hitting the ground with a...

### chemistry

Lead iodide is a relatively insoluble compound. It can dissolve from the solid phase into the aqueous phase with a Keq of 0.00027. If the concentration of lead iodide in the aqueous phase 0.125 M, then: a. we need more information to determine the progress of the reaction. b. ...

### Math (Geometric Progression)

5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phrase "form an arithmetic progression" ...

### Health

4. Which of the following is NOT a warning sign of suicide. A. Not accepting praise or reward** B. Change in eating and/or sleeping habits C. Being very careful about appearances D. Withdrawing from certain friends 5. A series of suicides that occur within a short period of ...

### Algebra 1

Algebra 1 help please :( Use the point-slope from linear equation given to complete the following problems.... y+4=-4(x-2) 1. What is the slope of the given line? 2. What point does this line pass through, which is the basis of this equation? 3. Rewrite this equation in slope-...

### Managerial Economic

Mr. Smith has the following demand equation for a certain product: Q = 30 - 2P. a. At price of $7, what is point elasticity? b. Between prices of 5$ and 6$, what is the arc elasticity? c. If the market is mark up of 100 individuals with demand curve identical to Mr. Smith's, ...

### Math

What does the following infinite series starting at k=2 converge to: Σ ln (1 - 1/k^2) In other words, what does this converge to: ln(1 - 1/4) + ln(1 - 1/9) + ln(1 - 1/16) + ln(1 - 1/25) + ln(1 - 1/36) + ... I assume the first step is this: Σ ln (1 - 1/k^2) = ln &Pi...

### maths

a)Express y = 2 (x - 1) (x - 5) in the form y = ax^2 + bx + c. b) From the above quadratic equation calculate the following: I) x and y intercepts II) Coordinate of the turning point III) Is the graph a maximum or minimum turning point?

### trigonometry

Evaluate the following expression. Your answer must be in exact form: for example, type pi/6 for π6 or DNE if the expression is undefined. arctan(tan(−31π6))

### pre cal

Simplify the following expressions. Your answers must be exact and in simplest form. (a) log8(8^−5x−10)= (b) 12^log12(−5+7q)= (c) log4(64^k)= (d) 3^3log3(10−10log3^3)=