# a certain reaction has the following generaln form

72,211 results, page 70

### science

apa style Different reference identify at least seven different problems with the following reference and the re-write the reference in its proper form Jo-Anne James; John Welles. (Nov.2009). The effects of Sleep Deprivation on Driver Errors, journal of applied psychology, vol...

### precalculus

The equation of the line joining the complex numbers -5 + 4i and 7 + 2i can be expressed in the form az + b \overline{z} = 38 for some complex numbers a and b. Find the product ab. I can get the equation of the line by slope intercept but I don't know how to do this in the ...

### Math

Determine if the function f(x) is the simplified form of g(x). If it is, state the non-permissible values. If it is not, determine the corrected simplified form, including the non-permissible values. (2 marks - show your work) g(x)=6x^2+x-12/2x+3,f(x)=3x-4

### Math

Determine if the function f(x) is the simplified form of g(x). If it is, state the non-permissible values. If it is not, determine the corrected simplified form, including the non-permissible values. (2 marks) - Show your work g(x)=2x^2-7x+3/x-3, f(x)=2x+1

### Math

Determine if the function f(x) is the simplified form of g(x). If it is, state the non-permissible values. If it is not, determine the corrected simplified form, including the non-permissible values. (2 marks - show your work) g(x)=(6x^2)+(x-12)/(2x+3),f(x)=3x-4

### Math

Determine if the function f(x) is the simplified form of g(x). If it is, state the non-permissible values. If it is not, determine the corrected simplified form, including the non-permissible values. (2 marks) - Show your work g(x)=(2x^2-7x+3)/(x-3) f(x)=(2x+1)

### chemistry

1. A three-step mechanism has been suggested for the formation of carbonyl chloride: Step 1: Cl2 ===> 2 Cl (fast equlibrium) Step 2: Cl + CO ===> COCl (fast equilibrium) Step 3: COCl + Cl2 ===> COCl2 + Cl (slow) What is the molecularity of the rate-determining step? ...

### Chemistry

Calculate the delta H and delta S for the reaction. From there, calculate the delta G at 25 degrees Celsius. Predict whether it the reaction is spontaneous or non-spontaneous under standard conditions. CH3OH(l)+ O2(g)--> HCO2H(l)+ H2O(l) *i could not find the find the delta...

### Grammar questions check

Would some one please check and see if I am correct 1.Identify the location or locations where apostrophe errors occur: "Put the clothes over they're (A)," he said. "That is where they're (B) going." _XX_Only A __Only B __A and B __No error 2.Identify the location or locations...

### chemistry

Consider the reaction shown: 452 kcal + 4 PCl5 (s) ¨ P4 (s) + 10 Cl2(g) This reaction is ________ because the sign of ƒ¢H is ________. A) exothermic; neither positive nor negative B) endothermic; positive C) endothermic; negative D) exothermic; positive E) exothermic; ...

### Chem

Consider the reaction shown: 452 kcal + 4 PCl5 (s) ¨ P4 (s) + 10 Cl2(g) This reaction is ________ because the sign of ƒ¢H is ________. A) exothermic; neither positive nor negative B) endothermic; positive C) endothermic; negative D) exothermic; positive E) exothermic; ...

### English

Do you think this definition is better and can be apply to the chemical and microbiological analysis of water? Scientific method Students will be involved in the following investigating activities: 1. Ask Questions 2. Do Background Research 3. Construct Hypotheses 4. Test ...

### chemistry

The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5 oC. The mixture ...

### chemistry

The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5 oC. The mixture ...

### math

List all possible rational zeros of... h(x)= 2x to the (4th power) - 5x (to the third power) + 3x (to the 2nd power) + 4x - 6 Use the Rational Roots Theorem. Any root of the form p/q with p and q relatively prime must be such that p divides 6 and q divides 2. You then find the...

### Chemistry

Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral? Al(ClO4)3-Acid LiCl-Neutral KClO2-BAse C6H5NH3NO2-Acid CH3NH3Br-Acid KCl-Neutral NaClO-Base NH4ClO-Acid Fe(ClO4)3-Acid C2H5NH3NO3-Acid Is this right?

### Chemistry

Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral? Al(ClO4)3-Acid LiCl-Neutral KClO2-BAse C6H5NH3NO2-Acid CH3NH3Br-Acid KCl-Neutral NaClO-Base NH4ClO-Acid Fe(ClO4)3-Acid C2H5NH3NO3-Acid Is this right?

### Organic Chemistry

isopentyl alcohol is reacted with acetic acid to make isopentyl acetate through Fischer esterification. Sulfuric acid is used to assist the reaction. After the reaction, the solution is washed with sodium bicarbonate. What reactions take place during this washing? What gas is ...

### Physics

Imagine that your car is powered by a fusion engine in which the following reaction occurs. 3*deuterium--->helium + hydrogen + neutron The masses are (2.0141 u), (4.0026 u), (1.0078 u) and (1.0087 u). The engine uses 8.1 10-6 kg of deuterium fuel. If one gallon of gasoline ...

### Organic Chemistry

A half-life of a H2O2 solution at a certain condition is 4 weeks. You have a 100 mL of 1.00M H2O2 solution. How many moles of H2O2 will be left in the solution after the following weeks? 04 weeks after: moles 08 weeks after: moles 16 weeks after: moles 20 weeks after: moles

### chemistry

At 300.K and 1.00 atm, assume that 25 mL of NO gas reacts with 22 mL of oxygen gas and excess water to produce nitric acid according to the following equation: O (g) H O(l) 2 HNO (g) 2 2NO(g) 3 + 2 + 2 ⎯⎯→ 3 . If all of the nitric acid produced by this ...

### Fine Art

1. Wooden temples were considered an art form from a. Japan b. China c. Buddhists d. Indians A 12. Which of the following colors represents the spiritual realm in many African societies? a. White b. Red c. Black d. Brown Not sure... 13. Shiva Nataraja stands on a small figure ...

### Chemistry please help!

What happens to the following reaction at equilibrium if the pressure is decreased? 2H2(g) + O2(g) 2H2O(g) A. The equilibrium shifts left because Q > K. B. The equilibrium shifts right because Q < K. C. The equilibrium shifts left because Q < K. D. The equilibrium ...

### Chemistry

The following questions relate to the chemical equation shown below. Since this is a multi-stage question, be sure to write down the balanced equation and the values for deltaHo and deltaSo before proceeding. A2(g) + 3 B2(g) → 2 AB3(g) deltaHo = -217 kJ mol-1 deltaSo = -...

### Chem

Consider this reaction: CO (g) + H2O (g0 <---> CO2(g)+H2(g) kc=102 at 500 K A reaction mixture initially contains 0.145 M of CO and 0.145 M of H20. What would be the equilibrium concentration of [CO]? I so far have kc= [H2][CO2]/[CO][H2O]= 102 I know i have to set up an ...

### biology

People with a lactose intolerance are able to take products such as Lactaid that contain the lactase enzyme with their meals. These products can be taken in pill form. Considering the fact that the pill form of the enzyme would have to travel through the person's stomach, what...

### chem

I can't seem to figure this out! I know I have to use mass to mass conversions though. Can someone help me out? Hydrochloric acid can dissolve solid iron according to the following equation: Fe + 2HCl to form FeCl2 + H2 a) How much HCl in grams would you need to dissolve a 2.8...

### Chemistry

IS THIS RIGHT? Experiments were performed with four metals and solutions of their ions: A-A^+, B-B^2+, C-C^2+, D-D^2+. The results of the experiments were: D^+2 + C ---> No reaction B^+2 + C---> B + C^+2 A^+ + B ---> A + B^+2 a.) Write the equation for each reduction ...

### chemistry

The reaction of aqueous iron(III) bromide and aqueous lithium phosphate is represented by the balanced ionic equation. Fe3+(aq) + 3Br-(aq) + 3Li+(aq) + PO43-(aq) → FePO4(s) + 3Li+(aq) + 3Br-(aq) Give the balanced formula equation for the reaction. Include the states. I ...

### biochemistry

The hydrolysis of one mole of sulphate ester produces one mole of protons.In a reaction tube containing 1.0ml of 0.02M TRIS buffer,pH8.08,sulphate ester was incubated with sulphatase for 10 min.At the end of reaction,the pH was reduced to 7.97.Calculated the amount of sulphate...

### math help pls pls pls

Create an example of a polynomial in standard form. How do you know it is in standard form? pls help me

### AP Biology

After an enzyme is mixed with its substrate, the amount of product formed is determined at 10-sec intervals for 1 min. Data: 0 secs. = 0.0 product formed (mg) 10 secs = .25 product formed (mg) 20 secs = .50 product formed (mg) 30 secs = .70 product formed (mg) 40 secs = .80 ...

### Reading

3. A “representative character” is one who stands for A. a certain ethnic group. C. a certain political theory. B. a type of personality. D. humanity in general. 4. Which one of the following characters is most in tune with nature? A. Ivar C. John Bergson B. Annie D. Emil ...

### nedd as much help as possible thanks!

What problem arises in trying to predict the type of compound formed by the reaction of gold and selenium? I honsetly have no Idea like Ihave read researched whn I was looking for some help I stumbled across this website and i was hoping you guys could help a brother out ...

### economics

3 . The production of housing has the following form: H = number of housing units = 4(L + 10)1/2 + 80 (M + 3)3/4, where L is land and M is materials. One unit of L costs 100 and 1 unit of M costs 12. Find the cheapest ways to produce 1000 housing units, 2000 housing units, and...

### Chemistry

The equation for the reaction that occurs when lead(II) oxide is heated with coke in a blast furnace is: 2PbO+c -->2Pb+CO2 (i)State, with a reason, whether PbO is oxidised or reduced in this reaction. (ii)Calculate the minimum mass, in tonnes, of coke needed to react with ...

### Chemistry

Which would react faster with MeI in aqueous solution: OH- or Et3N? I know that the reaction in aqueous solution would be an Sn1 reaction and so steric hindrance wouldn't have such a great effect. I am not sure which is a better nucleophile out of OH- and Et3N. OH- is charged...

### O chem

In lab we reacted 4-Methylcyclohexanol with sulfuric acid to give 4-Methylcyclohexene. We would expect 4-Methylcyclohexanol to only yield one product; however, the reaction produces isomers. This is not a case of a hydride shift or methyl shift, it is actually a result of the ...

### Chemistry/stoichiometry

For the reaction shown, calculate how many moles of NO2 form when each amount of reactant completely reacts. 2N2O5g = 4NO2g+O2g I am assuming that the first question must be converted to grams and the second question must be converted to kilograms I just need to know how to ...

### MATH !!!

PLEASE ANSWER THESE 3 I BEEN STUCK ON ALL DAY AND IM SICK OF THEM JUST WANNA SLEEP..PLEASE LABEL ANSWER WITH A B C D ! 1.which pair of ratio form a proportion? choose all that apply. A. 1/6, 4/20 B. 7/9, 28/36 C. 14/18, 21/27 D. 30/80, 8/18 2.which pair of ratios does not form...

### Geometry

I had to fill out a chart stating the properties of certine shapes(parallelograms). Some of them i put to many properties please tell me witch ones i have wrong. The properties to select from: 1-Opposite sides are parallel (both pair) 2-Opposite sides are congruent 3-Diagonals...

### Math

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

### Math

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

### Math

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

### Biology

28. Natural selection causes a. changes in the environment b. plants and animals to produce more offpsring than can survive c. changes in the frequency of certain favorable characteristics in a population d. all of the above D? 30. When Darwin published his theory of evolution...

### Biology

28. Natural selection causes a. changes in the environment b. plants and animals to produce more offpsring than can survive c. changes in the frequency of certain favorable characteristics in a population d. all of the above D? 30. When Darwin published his theory of evolution...

### geography

What is unusual about the written form of the Chinese language? A)The written characters are nonphonetic and give no clues to pronunciation. B) Few people can actually write in Chinese because the language is complex. C)Each ethnic group in China has its own version of written...

### geography

What is unusual about the written form of the Chinese language? A)The written characters are nonphonetic and give no clues to pronunciation. B) Few people can actually write in Chinese because the language is complex. C)Each ethnic group in China has its own version of written...

### Chemistry(check my work)?

An equilibrium mixture of the following reaction was found to have [COF2] = 0.255 M and [CF4] = 0.118 M at 1000°C. What is the concentration of CO2? 2 COF2(g) ---> CO2(g) + CF4(g) Keq = 2.00 at 1000°C I know I need to put the numbers in the equation so this is what i did...

### chemistry

How do these things shift the direction of a chemical reaction?: -adding/removing reactants -adding/removing products -adding/removing energy Thanks! It depends upon the equation and whether the reaction is exothermic or endothermic. Post the entire problem and tell us what ...

### biology

Which of the following is NOT a function of the TCA cycle: a. Provide carbon skeletons for biosysthesis b. Provide electron to the electron transport chain in the form of NADH c. make ATP d. Break down pyruvate. I know both a and c are the function of TCA cycle. I'm not sure ...

### Factored Form

Does 7r-7= 7r 7 This has to be in factored form. please let me know

### Math

What's 6/20 in simplest form? ( I know what simplest form is)

### Precalculus

#1.) Write (1-i)^10 in a+bi form. #2.) Write (1+i)^20 in a+bi form. How do I do these? Thanks!

### Math

Can somebody help me out here. I want to know why I am good with math problems but I don't get word problems until it is made out of a equation. The reason is that you have learned math as procedures and facts...math as a form of thinking, or analysis, hasn't sunk into your ...

### Unions and Intersections of Sets (Algebra)

Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who like all three sports, ...

### Temperature Problem

Q: A reaction rate has a constant of 1.23 x 10-4/s at 28 degrees C and 0.235 at 79 degrees C. Determine the activation barrier for the reaction. A: My work thus far: ln(1.23 x 10-4/0.235)=(Ea/8.314)(1/301.15-1/352.15) -7.551=(Ea/8.314)(0.0048090535) -7.551=(Ea/8.314)(0....

### math

what is 84 over 100 in simplest form? If i had a calculater i could help you but i can't do it on paper hit me up this is shawn and help me with my problem I don't know what you call simplest form? 84/100 could be written as 0.84. If you want it reduced to the simplest ...

### Math-geometry

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

### Math-geometry

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

### Math-Please help :(

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

### algebra

could you please see if i have correct answers thanks very much use the point-slope form linear equation y-3=3(x+1) a. slope is 3 b. point this line passes through that is basis of this equatio y = 3 x = -1 c. rewrite this equation in slope-intercept form y = mx+b y-3=3(x+1) y...

### Homework

a wire length 12 meters is cut into two parts; one part is bent to form a square, and the other is bent to form an equilateral triangle. Where the cut should be made if A. The sum of the two areas is to be a minimum? B. The sum of the two areas is to be a Maximum?

### Early Child Ed.

Please check these questions and my answers: 1.For children who are learning English as a second language, context-embedded activities enhance which? A) written language B) child-child socialization C) vocabulary development D) assimilation into the mainstream 2. Which of the ...

### Math

This doesn't make sense. My problem says "on a certain planet, i^2=-1" Then it told me to find the value of 1^4. How can I do that?

### computers

Are there certain curricular areas in which technology is more useful than in others? Such as in a classroom

### AED

1. Are there certain curricular areas in which technology is more useful than in others? Explain your answer.

### Science

1 What is a hupotheses? 2 what further information do we need to be more certain of the hypotheses? ( give examples)

### physics

The acceleration of a certain rocket is given by a=bt where b is positive cnstant, find the position function Xo and Vo at t=o?

### Physics

The acceleration of a certain rocket is given by ax=bt where b is positive constant, find the position and velocity at t=5.0s if Xo=0 and Vo=0 and b=3.0m/s^3?

### probability

What is the probabbilty that two certain people sit next to each other at a round table?

### linear algebra

these equation are certain to have the solution x=y=0 for which values of c is there a whole line of solutions? cx+2y=0 2x+ay=0

### eth

Should United States government policy favor certain kinds of immigrants?

### ETH

Should United States government policy favor certain kinds of immigrants?

### Chemistry

At a certain temperature, 0.660 mol of SO3 is placed in a 3.00 L container. 2SO3=>2SO2+O2 Kc=

### eth

should united states government policy favor certain kinds of immigrants?

### Physics

A car slows to a stop over a certain distance. What could cause the stopping force to be greater?

### geometry

at a certain time , a post 6 ft tall casts a 3 ft shadow.what is the angle of elevation of th sun

### Math

How long will it take for the population of a certain country to double if its annual growth rate is 3.9%

### geometry

If the mean of a certain population is 250 and the standard deviation is 40, what x value corresponds to the z-score of -0.35.

### physics

At a certain instant a moving object comes to momentary rest. Is it accelerating at that moment?

### Science-Biology

why do plants grow better under certain lighting conditions than others?

### math

If the mean of a certain population is 180 and the standard deviation is 38, what x value corresponds to the z-score of -0.27.

### rates

a certain kind of lumber costs $3.00 for 8ft . at this rate how much does 14ft cost

### english

what's the meaning of 1. i've grown certain that the root of all fear is that we've been forced to deny who we are

### Math

The scale of a certain map is 1cm to 25km.What is the actual distance represented by 2.80cm?

### math

The cost and revenue functions for a certain production facility are: C(x) = {x^2} + 2\,\,{\rm{and}}\,\,R(x) = 2{x^2} - x, then the break-even points are ( - 1,3)\,\,\,{\rm{and}}\,\,\,(2, - 6).

### algebra

the length of a certain rectangle is 4 cm longer that's its with and the area exceeds 7 times its with by 18 find the dimensions

### English

6 Which of the following descriptions best conveys the author’s negative attitude toward television? (1 point) communications instrument form of national linkage toy medium for selling Use the passage to answer the question. 8 Which statement is true about facts and opinions...

### Diagnosis and Assessing

Hello, can anyone help me with the following questions: Due to oppression and discrimination that many diverse members of counseling groups have faced, it is recommended that the group be a place where the subject of __________ can be openly explored. A. Civil rights B. Hatred...

### Chemistry, PPPLLEASE Help!

Hello, I'm confused on what these problems are telling me. Is questions a) and b) the same? I don't know, please help me I don't know what to do... The inteconversion of DHAP and G3P is a part of both the glycotic pathway and the Calvin cycle for phoyosynthetic carbon fixation...

### Coordinated Sciences (chem)

Hi guys, so we recently did a lab where we put a strip of Magnesium Carbonate in a crucible with a lid on, weighed it and then put it over a bunsen burner for a while to let it oxidise. After that, we weighed it again. Here are my results: Crucible + Lid =34.07g Crucible + Lid...

### biology 4

one strand of DNA could be as long as a football field if it were stretched out lengthwise. One of the factors allowing DNA to fit inside the nucleus of a cell is its ability to: A. break apart into separate genes B. extend to form very long, thick molecules C. coil tightly ...

### Chemistry

Administratium bromide (AdBr) decomposes readily at temperatures exceeding 37°C. The figure below shows how the rate of reaction varies with the concentration of AdBr. The rate, r, is in units of M s-1 and the concentration of AdBr, c, is in units of M (mole L-1). The slope ...

### CHEM

My balanced equation is: a) 2C8H18(g) + 25O2(g) -> 16CO2(g) + 18H2O(g) b) 0.290 mol of octane is allowed to react with 0.670mol of oxygen. Which is the limiting reactant? (((Which I found Oxygen to be the limiting reactant.))) I do not understant how to work out "c" & "d": ...

### Chemistry

If I was designing an experiment where hydrogen gas was collected over a 0.1 M aqueous HCl solution from the reaction with zinc metal and I assume complete, rapid reaction, what mass of zinc would be used to collect between 50 and 100 mL of the gas? Note: I calculated using ...

### chem

the following experiment was performed in the laboratory : an excess of solid SrCrO4 is vigorously shaken in water until a saturated solution is obtained. The excess solid is filtrated from the solution and 25.00 ml of the solution is titrated with 0.0115 M fe(no3)2 solution. ...

### math

Which of the following is a certain event? 1) rolling a composite number on a number cube 2)rolling a number greater than 1 on a number cube 3)rolling an odd or even number on a number cube 4)rolling an odd or even number greater than 7 I think # 3 Thanks for your hrlp

### Chemistry

If Kc = 7.5E-9 at 1000K for the reaction N2(g)+ O2(g)<=>2NO(g), what is Kc at 1000K for the reaction 2NO(g)<=>N2(g)+ O2(g)?