# a certain reaction has the following generaln form

27,956 results, page 31
1. ## Chem11

The reaction 2 COF2(g)--> CO2(g) + CF4(g) has Kp = 2,001,051 at a certain temperature. What would be the value of Kp for the related reaction: 3 CO2(g) + 3 CF4(g)--> 6 COF2(g)? (Enter your answer in scientific notation, e.g. 5.46e-17.)

asked by Ryan on May 3, 2011
2. ## Chemistry

The reaction of 1 Mol of iron metal with 3 Mol aqueous HCI produces 1.5 mol H2 gas, 1 mol aqueous FeCI3, and 87.9 kj of heat. Write a thermochemical equation for this reaction

asked by Sarah on May 19, 2016

2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: •

asked by Taylor on December 19, 2012
4. ## Chem- REALLY URGENT!!!

2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: •

asked by Taylor on December 19, 2012

2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: •

asked by Taylor on December 19, 2012
6. ## NEED HELP WITH CHEM HW

Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure. C2H4(g) + H2O(g) C2H5OH(l) What is the maximum amount of ethanol (in grams) that can be produced when 2.2 kg of ethylene (C2H4) and 0.014 kg of

asked by Anonymous on October 1, 2011
7. ## Chemistry

Suppose you tired to carry out a double-replacement reaction by mixing together equal volumes of a solution that contained dissolved NaF and a solution that contained dissolved NaCl. Would you expect a reaction, if so write the balanced chemical equation?

asked by Keely on January 29, 2015
8. ## Chemistry

A 100 L reaction container is charged with 0.782 mol of NOBr, which decomposes at a certain temperature** (say between 100 and 150 oC) according to the following reaction: NOBr(g) ↔ NO(g) + 0.5Br2(g) At equilibrium the bromine concentration is 1.42x10-3

asked by JOhn Boku on February 23, 2015
9. ## chemistry

Sulphuryl chloride, SO2Cl2, decomposes according to the following first-order reaction: SO2Cl2(g) ¨ SO2(g) + Cl2(g) At a certain temperature, it is observed that it takes 147 minutes for 23.0% of the sulphuryl chloride to react. Calculate the half-life

asked by matt on March 24, 2008
10. ## Chemistry

Balanced equations..done? Is each reaction a redox reaction? For those reactions that are redox reactions, I must identify the substance being oxidized and the substance being reduced... (a) Zn(s) + CoCl2 (aq) ---> ZnCl2 (aq) + Co(s) (b) HI(aq) + NaOH(aq)

asked by MD on June 30, 2014
11. ## Chemistry

6Li(s) + N2(g) 2Li3N(s) a) What mass of lithium is required to produce 0.575 g of Li3N in the balanced reaction? b) What mass of nitrogen is required for the reaction? ------------------------------------------- I tried dimensional analysis in a couple

asked by Brian on March 8, 2015
12. ## Chemistry

Suppose you tired to carry out a double-replacement reaction by mixing together equal volumes of a solution that contained dissolved NaF and a solution that contained dissolved NaCl. Would you expect a reaction, if so write the balanced chemical equation?

asked by Anonymous on April 25, 2011
13. ## chemistry

A definite amount of NH4cl was boiled with 100ml of 0.8N naoh for complete reaction. After the reaction, the reactant mixture containing excess of naoh was neutralized with 12.5ml of 0.75N nh2s04. Calculate the amount of nh4cl taken. The answer 3.78g who

asked by Fai on February 10, 2013
14. ## Honors Chemistry

What is the molecular structure of the molecule AlCl3? What characteristic is notable about the structure that helps us to understand the acidic nature of AlCl3?Write a chemical reaction between AlCl3 and NH3 ignoring any reaction between AlCl3 and the

asked by HonorsChemistryKid on February 24, 2010
15. ## chemistry

What is the molecular structure of the molecule AlCl3? What characteristic is notable about the structure that helps us to understand the acidic nature of AlCl3?Write a chemical reaction between AlCl3 and NH3 ignoring any reaction between AlCl3 and the

asked by kiki on February 24, 2010
16. ## Chemistry

In a certain reaction, 300.23 grams of solid aluminum sulfide combine with unlimited aqueous silver nitrate. How many moles of aluminum sulfide react? How many moles of each product will be produced? First of all, is the reaction a double replacement or

asked by Paula on December 8, 2009
17. ## Chemistry- practice question

The answer for this question is ΔHrxn=-441.40174468085 kJ/mol but I don't know how to arrive to that answer. 0.47g of magnesium reacts with 100ml of 1.00 mol/L HCl in the following reaction: Mg(s)+2HCl(aq)-->MgCl2(aq)+H2(g). The heat of reaction is

asked by Liz on August 1, 2014
18. ## physics

A ranger in a national park is driving along at 17.9 m/s when a deer jumps into the road 65. m ahead of the vehicle. After a reaction time of t seconds, the ranger applies her brakes, which produce an acceleration of -2.8 m/s2. What is the maximum reaction

asked by tyler on August 22, 2012
19. ## Chemistry

The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole

asked by Rose on April 5, 2016
20. ## Adv AP Honors Chemistry

2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: •

asked by Taylor on December 19, 2012
21. ## Chemistry ASAP

3. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: •

asked by Moe on January 19, 2013
22. ## Chemistry

A half-cell that consists of a copper wire in 1.00 M CuNO3 solution is connected by a salt bridge to a half cell containing a 1.00 M X(II) acetate solution and an electrode of metal X. The voltage of the cell is 2.00 V, with metal X as the positive

asked by JUNDY on April 13, 2015
23. ## Science/Chemistry

Write a Balanced equation for the chemcial reaction Acetylene gas (C2H2) burns in a welding torch with oxygen to form carbon dioxide gas and water vapor. C2H2(g) + O2(g) ==> CO2(g) + H2O(g) It isn't balanced. I will leave that for you. How do i balance it?

asked by Chris on March 16, 2007
24. ## Chemistry

Use the Bronsted-Lowry definitions to identify the two conjugate acid-base pairs in the following acid-base reaction: H20 + H20 H30^+ + OH^- Let's see what you think on this after the previous post. Just remember, the acid is the one that HAS the H and the

asked by Raj on May 26, 2007
25. ## Chemistry

Write balanced net ionic equations for the precipitation reactions that occur when the following solutions are mixed. If no reaction occurs, write "no reaction" a) silver nitrate and lithium hydroxide b) ammonium sulfide and cobalt (II) bromide I'm

26. ## Chemistry

In a reaction vessel, 500. mL of 0.100 M Na3PO4(aq) is combined with 200. mL of 0.400 M Pb(NO3)2(aq). (a) Write the molecular equation for the reaction that occurs. Balance the equation using lowest whole numbers and be sure to include states. (b) Identify

asked by ya boy on May 2, 2016
27. ## Chemistry

Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two

asked by TP on May 12, 2014
28. ## Chemistry (DUE TONIGHT)

A possible reaction for converting methanol to ethanol is: CO(g) + 2H2(g) + CH3OH(g) -----> C2H5OH(g) + H2O(g) I completed parts A-C correctly, and found the following info: delta H = -165.6 kJ delta S = -227.4 J/K delta G = -97.9 kJ The next question is

asked by LC on July 15, 2016
29. ## CHEMISTRY

Consider the following reaction: 2H2S+SO2=S(s)+H2O A reaction mixture initially containing 0.500M H2S and 0.500M SO2 was found to contain 1.0×10−3M at a certain temperature. A second reaction mixture at the same temperature initially contains 0.255M H2S

asked by bf on February 15, 2010
30. ## organic chemistry

Michael & Aldol Condensation Reaction We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates

asked by Anonymous on September 30, 2011
31. ## organic chemistry

Michael & Aldol Condensation Reaction We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates

asked by Anonymous on September 30, 2011
32. ## organic chemistry

Michael & Aldol Condensation Reaction We are preparing an a,b-unsaturated ketone via Michael and aldol condensation reactions. The reactants are trans-chalcone and ethyl acetoacetate (in ethanol and NaOH). This creates

asked by Anonymous on September 30, 2011
33. ## chemistry

The following data were obtained at 25° C for the reaction [1+2+2] C2H5Br + OH- C2H5OH + Br- Determine the rate law for the reaction from these data. [C2H5Br] [OH-] Rate 0.150 0.200 4.8 x 10-5 0.300 0.200 9.6 x 10-5 0.450 0.200 14.4 x 10-5 0.300 0.600

asked by ranu on February 8, 2012

1. What is the degree of the monomial 3x2y3? 2 3 5 6 2. What is the simplified form of 8b3c2 + 4b3c2? 12bc 12b3c2 12b6c4 12b9c4 3. What is the simplified form of (4j2 + 6) + (2j2 – 3) ? (1 point) (0) 6j2 – 3 (1) 6j2 + 3 (0) 6j2 + 9 (0) 4j4 + 3 4. What

asked by Deborah on January 28, 2013
35. ## Chemistry

The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq)

asked by Anon on December 4, 2012
36. ## Chemistry

The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq)

asked by Anon on December 2, 2012
37. ## Chemistry

I want to know the enthalpy change for this reaction which occurs in a blast furnace: Fe2O3(s) + 3C(s) --> 2Fe(l) + 3CO(g) You will need the heat of formation for CO, and ironIIIoxide, and the heatofmelting for iron. I suspect you have some temperature in

asked by Alice on April 15, 2007
38. ## science experiment

why will an eggshell dissolve in the acetic acid of vinegar and not the phosphoric acid of coca cola? Acetic acid reacts with the egg shell, primarily made of calcium carbonate, CaCO3, to form CO2 and calcium acetate. Vinegar is roughly 4-6% acetic acid.

asked by rishi on January 30, 2007
39. ## Chemistry

A reaction requires 0.5 g of pure methyl oleate (density = 0.87g/mL) (MW = 310g/mol). How many mL of 70% pure methyl oleate are needed for the reaction. I don't exactly know how to start this off. I think what I'm supposed to do is multiply the 70% by the

asked by Anthony on December 2, 2014
40. ## Chemistry

Suppose a compound is involved in three different reactions denoted R1, R2, and R3. Tripling the concentration of this reactant in all three reactions causes the rates of reaction to increase by factors of 3, 9, and 1, respec- tively. What is the order of

asked by Mitch on May 1, 2010
41. ## chemistry

A definite amount of nh4cl was boiled with 100ml of 0.8N naoh for complete reaction. After the reaction, the reactant mixture containing excess of naoh was neutralized with 12.5ml of 0.75N nh2s04. Calculate the amount of nh4cl takedn The answer 3.78g who

asked by Fai on February 10, 2013
42. ## ukm

The equilibrium constant (Kc) for the gas phase reaction 2 NH3 --> N2 + 3 H2 is 3 x 10-3 at some temperature. The reaction is started by placing a sample of ammonia in an empty one liter flask. When equilibrium is established there is 0.010 mole of N2

asked by Anonymous on January 8, 2012
43. ## chemistry

a 35.6g sample of ethanol (c2h5oh) is burned a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0c and the heat capacity of the calorimeter is 23.3kj/c what is the value of enthalpyH reaction? the molar mass of

asked by and6260 on July 28, 2013
44. ## college chemistry

The voltaic cell described by the balanced chemical reaction has a standard emf of 4.05 V. Calculate the equilibrium constant (Kc) for the reaction at 25 oC. Round your answer to 3 significant figures. F2(g) + Mn(s) → 2F-(aq) + Mn2+(aq) Mn2+/Mn -1.18

asked by sparkle on December 3, 2010
45. ## Chemistry

The following is given: 20 ml of HCl (2.0 M) added with 5 ml of Na2S2O3 (0.3 M) with 5 ml of H2O S2O3^-2(aq) + 2H^+1 (aq) --> S (s) + SO2 (g) + H2O (l) Calculate the following: a) Reaction rate when 30 mg of sulphur is formed (in 30 ml of solution) after

asked by Stephanie on October 20, 2010
46. ## chem

Consider the reaction: C3H8(g) + 5 O2(g) ® 3 CO2(g) + 4 H2O(g), where DH = – 531 kcal/mol. Which statement is true? A.Heat is absorbed. B.The bonds formed in the products are stronger than the bonds broken in the reactants. C.The products are higher in

asked by steve on March 22, 2012
47. ## chem

For the reaction 3NO2 + H2O  2HNO3 + NO, how many grams of HNO3 can form when 1.00 g of NO2 and 2.25 g of H2O are allowed to react? This is a limiting reagent problem. 1. Write the equation. You have done that and it is balanced. 2. Convert 1.00 g NO2 and

asked by meghan on February 28, 2007
48. ## Chemistry

OK I just need help with two final problems that I am stuck on: The problem states the calcium carbonate in limestone reacts with HCl to produce a calcium chloride solution and carbon dioxide gas CaCO3(s)+2HCl(aq)-->CaCl2(aq)+H2O(l)+CO2(g) 1)Find how many

asked by TT on December 10, 2010
49. ## APCHEm urgent!!!!!!

Hi thank you so much!!!! What is a net ionic equation for the reaction of H+ with Cu(NH3)4 ^2+ ALSO what is the net ionic equation for the reaction of H+ with Hg2Cl2 Does the H+ addition increase, decrease, or has no impact on the solubility of the salt.?

asked by Kiki on March 15, 2010
50. ## ap chemistry

Consider the following unbalanced reaction. P4(s) + F2(g) PF3(g) How many grams of F2 are needed to produce 212 g of PF3 if the reaction has a 79.8% yield? I did 212/.798=265.66 grams do I convert that to moles next?

asked by Kris on August 1, 2013
51. ## chemistry

What is the purpose of a calorimeter? A. To determine the temperature of a chemical reaction B. To determine the energy changes of a chemical reaction C. To identify the specific temperature of an unknown substance I think the answer might be c

asked by Morgan on November 23, 2014
52. ## Chemistry

In a combination reaction, 2.22 g of Magnesium is heated with 3.75 g of Nitrogen a) which reactant is present in excess? b) how many moles of product are formed? c) after reaction, how many grams of each reactant and product are present?

asked by Saige on October 10, 2011
53. ## chemistry

A 0.100 mol sample of H2S is placed in a 10.0 L reaction vessel and heated to 1132°C. At equilibrium, 0.0285 mol H2 is present. Calculate the value of Kc for the reaction below at 1132°C. 2 H2S(g) 2 H2(g) + S2(g)

asked by Brittany on February 1, 2011
54. ## chemistry

you work for a company that makes ammonia,NH3, which is an important compund needed in the manufacture of fertilizers. Ammonia is produced by the following reaction: N2 + 3H2 -----------> 2NH3(g) on the basis of what you have discovered in this experiment,

asked by Z.......... on May 13, 2010
55. ## Chemistry

For a particular redox reaction NO is oxidized to NO3^- and Cu^2+ is reduced to Cu^+ . Complete and balance the equation for this reaction in basic solution. We are given this as a guide to start NO + Cu^2+ --> NO3^- + Cu^+ I started with: Cu^2+ + 2e- -->

asked by Heather on April 10, 2014
56. ## Science

Traffic in the cities releases NOx gases into the atmosphere (in the form of NO and NO2). NOx gases contribute to rainwater acidification by dissolving and transforming into a strong acid (HNO3, nitric acid) according to the reaction below: 4 NO + 3 O2 + 2

asked by karem on December 21, 2016
57. ## CHEMISTRY

8) The reaction CH3- N≡C → CH3- C≡N is a first-order reaction. At 230.3°C, k = 6.29 x 10^-4 s^- 1. If [CH3 -N≡ is 1.00 x 10^-3 initially, C] [CH3-N ≡ C] is __________ after 1.000 x 10^3 s. A) 5.33 x 10^-4 B) 1.00 x 10^-6 C) 4.27 x 10^-3 D) 2.34

asked by JES on October 23, 2010
58. ## 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?

asked by amanda on December 30, 2011
59. ## A.P Chemistry

For a certain reaction ∆H is 54 kJ/mol and ∆S is 128 J/mol · K. This reaction can become spontaneous only above some temperature. What is this temperature? Answer in units of ◦C.

asked by Rachel on March 20, 2017
60. ## Chemistry

Ni2+(aq)+Mg(s)→Ni(s)+Mg2+(aq) Indicate the half-reaction occurring at Anode. Indicate the half-reaction occurring at Cathode.

asked by John on May 15, 2014
61. ## chemistry

Consider the reaction 2 X2Y+Z2 ⇌ 2 X2YZ which has a rate law of rate= k[X2Y][Z2] Select a possible mechanism for the reaction.

62. ## Chemistry

Does the reaction rate of a zero order reaction becomes half of its initial value,if the concentration of the reactant becomes half of its initial value?

asked by Josh on August 17, 2017
63. ## rate constant

A reaction has a rate constant of 1.25×10−4 at 28 and 0.227 at 77. Determine activation barrier for reaction What is the value of the rate constant at 18?

asked by charlie on February 11, 2013
64. ## chemistry

#2) Consider the preciditation reaction of a solution containing 3.50 grams of sodium phosphate mixed with a solution containing 6.40 grams of barium nitrate. How many grams of Barium phosphate can form? Ba(NO3 )2 + Na3 PO4 yields Ba3 (PO 4 )2 + NaNO3 #2b)

asked by lyne on January 30, 2009
65. ## Use of "facile"

Could someone please explain to me how facile differs form easy. and is the word facile used correctly in this sentence( excerpt form my essay) "He ultimately does not kill Popé; nonetheless, though it is not explicitly stated that John acted

asked by ME on May 30, 2009
66. ## chemistry

A classic experiment in equilibrium studies dating from 1862 involved the reaction in solution of ethanol and acetic acid to produce ethyl acetate and water. The reaction can be followed by analyzing the equilibrium mixture for its acetic acid content. In

asked by gs on March 13, 2011
67. ## chemistry

How many grams of carbon dioxide can form when a mixture of 3.60 g ethylene (C2H4) and 2.70 g of oxygen is ignited, assuming complete combustion to form carbon dioxide and water?

asked by me on January 25, 2012
68. ## Science

1.00g of oxygen combine with 0.126 g of hydrogen to form H2O. 1.00 g of nitrogen combie with 0.216 g of hydrogen to form ammonia. Predict the weight of oxygen

asked by RAJESH on July 9, 2017
69. ## algebra

This is a problem about logarithms: I'm completely confused as to what to do here: The logarithmic form of 84 = 4,096 is log8 4,096 = 4 Write the logarithmic form of x5 = the value of this quantity Explain the steps of conversion.

asked by Vilma on June 26, 2012
70. ## Science

How two neutral objects may become positively and negatively charges? How is atomic mass established? Which atoms will form covalent bonds and which atoms will form ionic bonds?

asked by Trissy on January 15, 2008
71. ## Algerbra

Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x2+y2+16x−18y+145=25 Standard form (x-h)^2 +(y-k)^2 k

asked by Jackie on June 12, 2013
72. ## Statistics

When creating histograms, which is true statement? a) Form classes of equal width b) Alwyas form frequency groups that do not overlap c) Establish between five and 15 frequency groups d) All of the above.

asked by Anonymous on November 8, 2013
73. ## Algebra 2

Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is

asked by Tessa on February 9, 2010
74. ## geometry

Plot the points (2,4), (-1,4) and (2,1) and connect them to form a triangle. What rule would you use to translate the triangle 5 units to the right? Write your rule in the form H(x,y) = (?,?). Draw the translated figure and label its coordinates

asked by Anonymous on February 6, 2012
75. ## geometry

Plot the points (2,4), (-1,4) and (2,1) and connect them to form a triangle. What rule would you use to translate the triangle 5 units to the right? Write your rule in the form H(x,y) = (?,?). Draw the translated figure and label its coordinates.

asked by Anonymous on January 30, 2012
76. ## chemistry

if you have one mole of CH3CH3(g) + 2 moles of Cl2 (g) and form one mole of C2H4Cl2 (l) + 2 moles of HCl (g) assuming a 90% yield calculate the amount of each reactant needed to form 1.5 kg of product

asked by noell on August 30, 2010
77. ## Chemistry Problem

Diiodine pentafluoride reacts spectacularly with bromine trifluoride to form iodine pentafluoride, oxygen gas, and liquid bromine. In a particular reaction a 44.00g sample of I2O5 reacts with 58.00g BrF3. What is the mass of the excess reagent? This is

asked by nns40760 on December 2, 2014
78. ## chemistry

The amount of lactic acid, HC3H5O3, produced in a sample of muscle tissue was analyzed by reaction with hydroxide ion. Hydroxide ion was produced in the sample mixture by electrolysis. The cathode reaction is given below. 2 H2O(l) + 2 e ‾ → H2(g) + 2

asked by Long on May 3, 2010
79. ## Chemistry

Write the dissociation reaction and the corresponding Ka equilibrium expression for each of the following acids in water. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer. Omit water in your answer.) (a)

asked by Chris on March 3, 2012
80. ## Chemistry

Oxy acetylene welding uses acetylene gas which is produced by the reaction of CaC2 with water. It also produces calcium hydroxide as a by product.Calculate the volume in liters measured at 27°C and 965 torr that would be produced from the complete

asked by Vaidehi on August 30, 2016
81. ## Science

Equation for the reaction which took place: Hydrochloric acid + calcium carbonate -> calcium chloride + carbon dioxide + water When the reaction stopped the total mass had decreased from 102.5g to 101.4g. some water had evaporated from the beaker what else

asked by afghandon on June 29, 2014
82. ## Chemistry

A total of 2.00 mol of a compound is allowed to react in a foam coffee cup that contains 141 g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat

asked by Karen on October 11, 2010
83. ## Chemistry

What mass of copper(II) nitrate would be produced from the complete reaction of 65.3 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 ----> Cu(NO3)2 + 2 Ag Use the masses to two decimal places using the periodic chart in the front

asked by Kristin on October 19, 2013
84. ## Organic Chemistry

The purpose of adding concentrated H2SO4 to the Diels-Alder adduct was to: A. hydrolyze the product to make the product precipitate more easily B. catalyze the diels alder reaction C. use Le Chatelier’s principle to drive the reaction to completion D. to

asked by nilee on March 6, 2009
85. ## Math-Algebra 1

Part 1: When writing linear equations, how do you determine which form of a line to use? Part 2: Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in point-slope form for

asked by Gabby on November 23, 2013
86. ## Algebra 2 help plsss?

what is a simpler form of the radical expression? 4sqrt1296 x^16 y^12 how can you write the expression with rationalized denominator? 3 sqrt 2 / 3 sqrt 4 what is the quotient (4-x)/(x^2 + 5x - 6) / (x^2 - 11x + 28)/(x^2 + 7x + 6) in simplified form? State

asked by Nyanka on May 18, 2016
87. ## Math

The graph of a quadratic function has vertex(3,-4) and passes through the point (4,1). Find the equation of the function in standard form. Rewrite the equation in general form. Could someone explain to me how to do this, just don't understand.

asked by -Untamed- on December 6, 2011
88. ## Math

The graph of a quadratic function has vertex(3,-4) and passes through the point (4,1). Find the equation of the function in standard form. Rewrite the equation in general form. Could someone explain to me how to do this, just don't understand.

asked by -Untamed- on December 6, 2011
89. ## Math

How do I express these in scientific notation AND Log10 form? 1) ln(8.1) 2) 32.8 x 10^-2 + 3.15 x 10^-1 3) 10^-2 x 10^4.5 4) 10^-45 5) 8^2.34 I will be happy to critique your work here. Most of these require conversion. Do the math, and let your calculator

asked by Carl on January 21, 2007
90. ## Geometry

Two sides of a rhombus form a 120º angle. The length of each side is 6 in. Explain how to find the area of the rhombus, and then calculate the area. Leave your answer in simplest radical form.

asked by Rachel on February 14, 2012
91. ## Geometry

Two sides of a rhombus form a 120º angle. The length of each side is 6 in. Explain how to find the area of the rhombus, and then calculate the area. Leave your answer in simplest radical form.

asked by Rachel on February 14, 2012
92. ## Algebra

Show work to change the linear equation below to slope-intercept form and then, list the slope and y intercept coordinate for the: (leave answers as an integer or a fraction in improper form). 20+3x-8y=0

asked by Tariq Glaster on February 11, 2012
93. ## math

Q: Convert 4x^2 + 4y^2 -8x -16y -29 = 0 into standard form. I first started by pairing the like terms together, getting: 4x^2 -8x + 4y^2 -16y = 29 The next step, I'm a little confused. I know I need to complete the square, but I'm not sure how to fully

asked by Kenneth on January 29, 2012
94. ## math

Using the equation y=(3x+2)(x+2) determine the x intercepts, the axis of symmetry and the vertex. I changed this equation into factored form because originally it was in standard form. Im having trouble with the x-intercepts. I want to say -2, -2 but I

asked by James on September 1, 2012

R stands for the dominant form of the color blindness allele and r signifies the recessive form. Because Edward is NOT color blind, the allele on his X chromosome must be __________.

asked by Mark on May 24, 2014
96. ## maths

Hi Please can you help Find the particular solution of the differential equation from f(x)=(x^2-6x+23)^(3/2)for which y=2 when x = 1, and then give this particular solution in explicit form? Am I correct that the following is the explicit form (not

asked by Claire on March 30, 2011
97. ## find the polynomial

degree 4 zeros i & (1+i) constant term 12 How do I start this problem. Thanks A degree four polynomial will have the form (x^4 +... x + c), where c is a constant. You will need to generate an equation that has the above form, using c=12. Solve for the

asked by Jen on February 1, 2007
98. ## Algebra2

Are these Correct? Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 1. Passes through (3, 2) and is parallel to 2x-y=4 = 4x+y 2. Passes through (-1, -1) and is perpendicular to y = 5/2x + 3 =6\7x-2

asked by Victoria on November 29, 2012
99. ## chemistry

The ionization constant Ka of an indicator HIn is 1.0x10^-6. The color of the nonionized form is red and that of the ionized form is yellow. What is the color of this indicator in a solution whose pH is 4.00? Thanks!

asked by George on July 18, 2010
100. ## science/ chemistry

Over 80 000 vehicles per day pass the site and the traffic is frequently congested. The surrounding area is described as forming a street canyon. The temperature at the site had reached 25 °C by 08:00, when the ethane concentration was recorded as 7.09

asked by Nicolas on September 14, 2008