a certain reaction has the following generaln form

73,436 results, page 24

mathematics

find the general solution to the following differential equation dy/dx=-(In(x))/(x^2)*y^1/2 (x>0,(y>0)give answer in implicit form.

9th grade - Algebra???

how do i turn the following equations into standard form? -14x = 24 + 18y y = 9/2x - 7/2 -3y = -6 + 6x -20/3 = 5y + -5x y = 3/2x + 5

pre algebra

solve the following system graphically. Check your solution. 3x+y=9 -2y=x-8 I know im supposed to put it in y=mx+b form but i don't know how to.

Chemistry

Which of the following surfaces does a true monolayer always form on? A. silicon B. gold C. both D. neither

math

Write the following statement in if - then form. David will sing provided Eric plays the piano. i don't get get this

algebra 1

simplify the following fractions by rewriting them in factored form and finding all the "ones" you can....plis help.. 42/60, 16/80, 51/17, 7/33...

Inter algebra

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. (10x-5)-5

Math

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. -14xy / 42x^5y^8

Math

Short answer: simplify the following expression,and rewrite it in an equivalent form with positive exponents. (9x^-3)^3

algebra

Can someone please help me? Thanks! simplify the following expression, and rewrite it in an equivalent form with positive exponents(4x^2)-^2

algebra

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. 10x^3y^3 -------- 40x^-3y^-4

math

simplify the following expression and rewrite it in an equivalent form with positive exponents 24x^3y^-3/72x^-5y^-1 Thanks!

college chem

How many moles of O are needed to combine with 0.223 mole of C to form the following compounds? CO CO2

chemistry

Which of the following is a possible set of n, l, ml, and ms quantum numbers for the last electron added to form an As3+ ion? (a) 3, 1, -1, ½ (b) 4, 0, 0, -½ (c) 3, 2, 0, ½ (d) 4, 1, -1, ½ (e) 5, 0, 0, ½

algebra

simplify the following expression, and rewrite it on equivalent form with positive exponets. -16x7y4z ---------- 20x2z3

chemistry

Which of the following solutions will not form a precipitate when added to 0.10M NaOH? a) 0.10 M MgBr2 b) 0.10 M NH4Br c) 0.10 M FeCL2

chemistry

Which of the following solutions will not form a precipitate when added to 0.10M NaOH? a)0.10 M MgBr2 b) 0.10 M NH4Br c) 0.10 M FeCL2

spanish

supply the form of ser that goes with the following subjects el, nosotros, yo I need a few examples for help

math

(1).answer that correctly shows following vectors,given in component form, in standard position. (1). V=(5,-2) (2). v=(-3,-4) (3).u=(16,-8) v=(-5,3) u+v= ? (#,#) (4).u=(10,5) -3u= ?

math

Calculate the following and write your answer in the simplest form. Please show all your calculation. 4 2/6-1 2/12+2 1/4

math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Add: 3/8 + 1/2 + 3/4+=

math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Subtract: 3/4 - 3/8 =

math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Multiply: (2/3) (3/5) =

math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Divide: 3/4 ÷ 3 =

math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. a) 2(5+3+2) -------- 2(2+3)

math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. b) 3(12+2+1) ---------- = 3(4 + 1)

math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. 8(2+3)² ------- 2(5)²

Quick math help

Write an equation in point slope form using the following points: (-3,2) and (-5,1) Please help me! Thank you!

College Algebra

Write the following in a+bi form (-5-i)/(3-3i) -5/3 and 1/3i (-5/2i)/(-1/5i) 23 and 0i (-2i)^3 -2 and 0 Im having trouble with these probems and here is my answers. PLEASE HELP

Math Help!!!

Use cross products to determine which of the following pairs of ratios cannot form a proportion. A. 1/3*3/9 B. 2/3*4/9 C. 2/3*4/6 D. 1/3*2/6 Is the answer B?

Calculus

With the following coordinates (16,46) (18,64) (20,60) create three formulas using Y+Ax^2+Bx+C then solve for A,B, and C to form the final equation.

Algebra 2

Find the vertex of each of the following parabolas by averaging the x intercept. Then write each equation in graphing form. Y=(x-3)(x-11)

english

20. Which of the following singular nouns does not form an irregular plural? (my sec) A. mouse B. tooth C. ox ** D. tree

Mathematics

Given the following equation in general and intercept form y=3x-3.find the inclination of line containing p1(1,5)and p2(7,-7)

SCIENCE

I mix 300.0ml of the barium nitrate solution from 1c with 100ml of a 1.50M lithium phosphate solution. The reaction produces solid barium phosphate a. Write a balanced equation for the reaction. b. Which is my limiting reagent? c. How much barium phosphate may be produced in ...

Chemistry

Reaction: C6H11OH(l) ==> C6H10(l) + H2O(l) Calculate the mass of cyclohexanol (C6H11OH) needed to produce 45.0g cyclohexene (C6H10) by reaction if the reaction has a 86.2% yield and the cyclohexanol is 92.3% pure. Usually this problem would be fairly easy, but the purity is...

statistics

Give the probability in decimal form (correct to two decimal places). A calculator may be helpful. Last semester, a certain professor gave 35 As out of 259 grades. If one of the professor's students from last semester were selected randomly, what is the probability that ...

math

Give the probability in decimal form (correct to two decimal places). A calculator may be helpful. Last semester, a certain professor gave 15 As out of 396 grades. If one of the professor's students from last semester were selected randomly, what is the probability that ...

Science Help!!!!

1. Which of the following types of pollution cannotbe attributed to car and truck emissions? A. Acid rain B. Sedimentation C. Ozone D. Photochemical smog 2. In which of the following places is it more difficult to determine if there is pollution? A. Aquifer B. Stream C. Air D...

chemistry

I need the equilibrium constant for the following reaction @ 25 deg. C 2CaCO3 (calcite) + Mg2+ <==> CaMg(CO3)2 (dolomite) + Ca2+

chemistry

What is delta Hrxm dagrees for the following chemical reaction? CO2(g)+2KOH(s) = H2O(g)+K2CO3(s) Express your answer in numerically, in kJ

Ochem Lab

Suggest an appropriate reducing reagents for the following substrates and predict the reaction:(1) 2-hexanone, (2)ethyl 4-nitrobenzoate, (3) hexanal

Chemistry

Determine the total number of electrons transferred in the following balanced reaction. 4 MnO4– (aq) + 12 H3O+ (aq) → 4 Mn2+ (aq) + 5 O2 (g) + 18 H2O (g)

chemistry

Which term in the following reaction would not be included in the equilibrium expression? 2 Na3PO4 (aq) + 3 MgCl2 (aq) → 2 Mg3(PO4)2 (s) + 6 NaCl (aq)

chemistry

An unknown weak monprotic acid with the general formula HA has a Ka=5.5 x 10^-7. what is the value of the equilibrium constant that describes the following reaction? A- +H2O = HA +OH-

chemistry

balance the following equation by half reaction method in an acidic medium: C3H8O + MnO4^- gives off C3H6O + Mn^2+

chemistry

What volume of 16M HNO3 is required to dissolve 0.50g of Cu metal in the following reaction? Cu(s) + 4HNO3(aq) ---> Cu(NO3)2 + 2H2O + 2NO2

chemistry

the following reaction is endothermic; 3O2(g) = 2O3(g) If this reation is at equilibrium will it shift to the right or left if we: 1) add some oxygen

Chemistry

Write a balanced equation showing how you could prepare each of the following salts from an acid-base reaction: KNO3, NaBr, CaS.

Chem

Use the following reactions to arrange the elements A, B, C, and D in order of their redox activity, from greatest to least. 2 A + B2+ --> 2 A+ + B B + D2+--> B2+ + D A+ + C -->No reaction 2 C + B2+ --> 2 C+ + B Can someone explain? thanks

chemistry

please help this equation is driving my crazy. balance the following redox reaction in basic solution. H2O2 + ClO2 --> ClO-2 + O2

Chemistry

Given the following data, calculate the enthalpy change for the reaction S(s)+ O2(g)->SO2(g) S(s)+(3/2)O2(g)->SO3(g) H=-395.2 kJ 2SO2(g)+ O2(g)->2SO3(g) H=-198.2 kJ

chemistry

What volume of carbon dioxide is produced when 36.7 g of calcium carbonate reacts completely according to the following reaction at 25oC and 1 atm?

chemistry

Al2O3(s)+6NO(g)---->5N2(g)+6H2O(l) how many grams of Nitric Oxide are required to produce 145g of nitrogen in the following reaction?

chemistry

the following reaction consumes 2.6kg of CO(g): CO(g) + H2O(g) --> CO2(g) + H2(g) how many total liters of gas are formed if the products are collected at STP?

Chemistry

You are given the following decomposition reaction of ammonia NH3 ---> H2 + N3 unbalanced When you decompose 12.0g of NH3you produce 1.87 g of H2 Calculate the percent yield of H2

Chemistry- Please Help!!

Predict the proper equilibrium constant expression for the following reaction... Fe(OH)3(s) ----> Fe3+(aq) + 3 OH-(aq) Explain the reasoning behind your answer.

Chemistry

For the following chemical reaction... HCN (aq) + KOH (aq)----> H2O (l) + KCN (aq) write the net ionic equation, including the phases

chem

Please calculate the energy involved in the following chemical reaction, given the values below: 2Ag + H2S --> Ag2S + H2 -24 -33

chem

Please calculate the energy involved in the following chemical reaction, given the values below: 2Ag + H2S --> Ag2S + H2 -24 -33

chemistry

Consider the following chemical reaction: 2H2O2(L) ¨ 2H2O(L) + O2(g) ƒ¢Hrxn = -196.1 kJ How much heat is released if 2 moles of O2 are produced?

Chemistry

Balance the following equation for a half reaction that occurs in basic solution. Use e– as the symbol for an electron. SO3^2- ---> S2O4^2-

Chemistry

What is the approximate ΔH in kJ for the following reaction as written: 2NH3(g) --> 3H2(g) + N2(g) Careful, what kind of bond does the nitrogen molecule make?

chemistry

Calculate the free energy change of the following reaction (in kJ). 3A^2+ +2B------->3A + 2B^3+ Ecell= 1.66 -(5 mol)*(9.65*10^4)*1.66= -8.0095*10^5 Did I do it right? or is the number of electrons wrong?

Chemistry

For the following chemical reaction HCN(aq)+KOH(aq)--->H2O(l)+KCN(aq) Write the net ionic equation, including the phases.

Chemistry

For the following reaction, how many kJ of heat are produceed in forming 225.0 g of NO? 4 NH3 + 5 O2 → 4 NO + 6 H2O ΔHrxn = -906 kJ/mole

Physical science

Calculate the mass of carbon monoxide that was needed to produce 78 grams of methanol by the following reaction: 2H2+CO=CH3OH

chemistry

A reaction rate increases by 60.3% when the temperature is increased from 21.5 to 35.6°C. Calculate the activation energy (in kJ/mol) for the reaction.

chem

Which reaction has been chosen as the 'standard' against which every other reaction is measured? A. Li+ + e– --> Li B. F2 + 2e– --> 2F– C. 2H+ + 2e– --> H2 D. O2 + 4H+ + 4e– ==> 2H2O E. H2 + 2e– ==> 2H

chemistry

what do you observe in the displacement reaction of zinc and lead nitrate? also, what is the symbol equation for this reaction?

chemical

how to obtain the kinetic data for this reaction 2NO3+2H2>2H2O+N2 HOW TO PERFORM THIS REACTION IN LAB.

CH102

If a temperature increase from 18.0 to 34.0 triples the rate constant for a reaction, what is the value of the activation barrier for the reaction?

Chem12

Calculate Kp for the reaction N2(g) + 3 H2(g)--> 2 NH3(g) given that the reaction has Kc = 438,880,639 at a temperature of 265.

chemistry

state two ways of decresing the reaction rate of a gas phase chemical reaction.

Chemistry

Please help me explain How a nuclear reaction differs from a normal chemical reaction and give examples.

chemistry

what are the reaction steps of the reaction between ferric chloride with hydrogen at 600 degree celsius

Chem

How do you determine the rate of reaction of a substance using stoichiometry and the average volume of the reaction on mixture?

Chemistry

The rate constant for a second-order reaction is 0.54 M-1s-1. What is the half-life of this reaction if the initial concentration is 0.27 M

Chemistry

The reaction N2(g)+3H2(g)<-->2NH3(g) begins with 1.15 M N2 and 1.36 M H2. At equilibrium the concentration of NH3 is 0.78 M. Determine the extent of reaction.

chemistry

CO2 + 3H2 equilibrium CH4 + H2O what is the forward and reverse reaction for it? what are the units of Kc for this reaction?

Chemistry

Balance the redox reaction below using the half-reaction method. Bi3+(aq) + Co(s)Bi(s) + Co2+(aq)

Science at National University OF Samoa

2-bromobutane heat with 2M NaOH. What is the observation and the chemical reaction for the reaction?

BISE Larkana

KC for reaction is 55.0 at 700C calculate the equilibrium concentration of reaction and products when the initial consultation of h2 and i2 are 2.55

Chemistry

Half reaction method of balancing redox reaction CHCl3 + MnO4- = Cl2 + CO2 + Mn+2

Chem

How us the speed of a chemical reaction related to the spontaneity of the reaction?

Chemistry

what is the relationship between reaction spontaneity and the extent of reaction?

chemistry

A reaction has ÄH = -378 kJ and ÄS = -37 J/K. Calculate ÄG at 25°C to confirm that the reaction is spontaneous. in kJ

science

The reaction h2so4+naoh->bahso4+h20 is what reaction

biology

what is the difference between an exergonic reaction and an endergonic reaction?

language arts

directions: decide which form of the verb given in parenthases is needed write the correct form on the line identify the form you used by writing present,past,or past participle. sentance one: have you (speak)to anyone about your vacation plans? if you can please help me i don...

Chemistry

Why would you subtract the heat of a calorimeter when calculating heat of the reaction? hint: the heat of the calorimeter is the amount of heat that the calorimeter absorbs from the solution-each calorimeter will absorb a certain amount of heat, which means that the ...

chem

For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the temperature is increased. PCl5(g) <===> PCl3(g) + Cl2(g) a) What is the sign of S° for the reaction? Explain. b) What change, if any, will occur in G...

physics

The forces acting on the arm of a person lifting a dumbbell. The force F is the force pulling on the hand due to the weight of the dumbbell, the force Warm is the weight of the arm and T is the tension due to the muscles connecting the arm and the trunk. Question: Due to ...

Chemistry

The oxides of Group 2A metals (symbolized by M here) react with carbon dioxide according to the following reaction: MO(s) + CO2(g)  MCO3(s) A 2.85-g sample containing only MgO and CuO is placed in a 3.00-L container. The container is filled with CO2 to a ...

.Chemistry Help please?

This type of question come in our exams usually that. If the Reaction P+Q → R + S is described as being of zero order with respect to P, it means that. Answer: THE RATE OF REACTION IS INDEPENDENT OF THE CONCENTRATION OF P. I want to ask that, what is such thing in this ...

chem

For the following reaction, 31.1 grams of diphosphorus pentoxide are allowed to react with with 10.2 grams of water. diphosphorus pentoxide (s) + water (l)>>> phosphoric acid (aq) What is the maximum amount of phosphoric acid that can be formed in grams? What is the ...

science

2. which of the following happens when a low - mass star runs out of fuel ? choose all that apply . ( 3points ) A ITS CORE BECOMES A WHITE DWARF B ITS OUTER LAYERS FORM a nebula , or vast cloud of gas and dust c its outer layers expand , and the star becomes a red giant d. gas...

SCIENCE

2. which of the following happens when a low - mass star runs out of fuel ? choose all that apply . ( 3points ) A ITS CORE BECOMES A WHITE DWARF B ITS OUTER LAYERS FORM a nebula , or vast cloud of gas and dust c its outer layers expand , and the star becomes a red giant d. gas...

Science please help :)?

Which of the following happens when a low-mass star runs out of fuel? Choose all that apply. A. Its core becomes a white dwarf B. Its outer layers form a nebula, or vast cloud of gas and dust C. its outer layers expand, and the star becomes a red giant D. gas and dust in a ...

Chemistry 12

15. The concentration of hydroxide ions in a solution of nitric acid 0.2 M is: a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x 10-1 M 16. Aqueous solutions of strong acids and strong bases: a. are good electricity conductors b. make litmus paper become red c. have a pH of 7...

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