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Consider the following chemical reaction 2HCL+ Ca(OH)2 CaCl2+2H2O You have mixed

    Consider the following chemical reaction 2HCL+ Ca(OH)2 CaCl2+2H2O You have mixed 30.00ml of 0.150 M HCl solution with 20.00ml of 0.100m Ca(OH)2 solution what is the molarity of the HCl, Ca( OH)2 and CaCl2 after

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  1. Chemistry

    A 0.879 g sample of a CaCl2 ∙ 2 H2O / K2C2O4 ∙ H2O solid salt mixture is dissolved in 150 mL of deionized water. A precipitate forms which is then filtered and dried. The mass of this precipitate is 0.284 g. The limiting reagent in the salt mixture was

  2. Chemistry

    which equation represents an oxidation-reduction reaction? 1.HCl+KOH–>KCl+H2O 2.4HCl+MnO2–>MnCl2+2H2O+Cl2 3.2HCl+CaCO3–>CaCl2+H2O+CO2 4.2HCl+FeS–>FeCl2+H2S

  3. chemistry

    calculate how many moles of CaCl2•2H2O are present in 1.0 g of CaCl2•2H2O and then calculate how many moles of pure CaCl2 are present in the 1.0 g of CaCl2•2H2O

  4. Chemistry

    From the following data at 25°C, H2(g) + Cl2(g) → 2HCl(g) ΔH0 = −185 kJ 2H2(g) + O2(g) → 2H2O(g) ΔH0 = −483.7 kJ Calculate ΔH0 at 25°C for the reaction below. 4HCl(g) + O2(g) → 2Cl2(g) + 2H2O(g)

  5. Chemistry

    Consider the reaction: CaCl2. 2H2O(s) CaCl2(s) + 2H2O(g) The equilibrium constant for the reaction as written is

  6. CHEMISTRY

    You carefully weigh out 20.00 g of CaCO3 powder and add it to 81.00 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 92.80 g . The relevant equation is

  7. chemistry

    The reaction of calcium bicarbonate, Ca(HCO3)2 with hydrochloric acid, HCl, produces a solution of CaCl2, gaseous carbon dioxide, CO2, and water, H2O. Write a balanced chemical equation for this reaction and determine the volume of CO2, in mL, that forms

  8. chemistry

    A 0.972g sample of a CaCl2*2H2O/K2C2O4*H2O solid salt mixture is dissolved in ~ 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.375 g. The limiting reactant in

  9. Chemistry

    How much sulphuric acid containing 90% H2SO4 by wt. is needed for the production of 1000 kg of HCl containing 42% HCl by weight in this reaction. 2NaCl + H2SO4 —–> Na2SO4 + 2HCl

  10. Chemistry

    A 0.450-gram sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is: CaCO3(s)+2HCl(aq) -> CaCl2(aq) + H2O(l) + CO2(g) The excess HCl(aq) is titrated by 9.75 mL of 0.125 M NaOH(aq). Calculate the mass

  11. chemistry

    Calcium carbonate CaCO3 reacts with stomach acid (HCl, hydrochloric acid) according to the following equation: CaCO3(s)+2HCl(aq)->CaCl2(aq)+H2O(l)+CO2(g) Tums, an antacid, contains CaCO3. If Tums is added to 35.0 mL of 0.300 M HCl,how many grams of CO2 gas

  12. Chemistry

    a) Ammonia, an important source of fixed nitrogen that can be metabolized by plants, is produced using the Haber process in which nitrogen and hydrogen combine. N2(g) + 3H2(g) → 2NH3(g) How many grams of nitrogen are needed to produce 325 grams of

  13. Chemistry 1

    You carefully weigh out 17.00g of CaCo3 powder and add it to 68.85g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 78.88g . The relevant equation is CaCo3(s)+ 2HCl(aq)—>

  14. Science

    Hydrogen gas(H2) and chlorine gas (CL2) react to form hydrocloric acid (HCL). What is the correct balanced chemical equation for this reaction? A-2H2+2CL2->HCL B-H2+CL2->2HCL C-2H2+CL2->2HCL D-H2+CL2->HCL I think C Pls Help me

  15. Chemistry

    Consider the reaction: M + 2HCl ¨ MCl2 + H2 When 0.85 mol of the metal, M, reacted with an aqueous HCl solution (the HCl is in excess), the temperature of the solution rose because the reaction produced 6795 J of heat. What is ∆H in kJ per mol of M

  16. chemistry

    what volume of 0.1 moldm-3 HCL acid would be required to dissolve 2.3 grams of calcium carbonate equation CaCO3+2HCL———-=CaCl2+CO2+H20 (WATER)

  17. Chemistry

    A .972g sample of a Cacl2 2H2O/K2C2O4 H2O solid salt mixture is dissolved in 150 ml of deionized water, previously adjusted to a pH that is basic . The precipitate after having been filtered and air dried has a mass of .375g. what is the percent by mass of

  18. science

    A 0.972g sample of a CaCl2*2H2O/K2C2O4*H2O solid salt mixture is dissolved in ~ 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.375 g. The limiting reactant in

  19. Chemistry

    Calcium carbonate reacts with HCl according to the following equation: 2HCl(aq)+CaCO3(s)→CaCl2(aq)+H2O(l)+CO2(g) How many moles of HCl are in 58 mL of 0.13 M HCl? What mass of calcium carbonate is needed for complete reaction with the HCl in (a)?

  20. Chemistry

    Consider the reaction: 2HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2H2O(l) ∆H = – 118 kJ Calculate the heat when 100.0 mL of 0.500 M HCl is mixed with 300.0 mL of 0.50 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25 oC and the

  21. chemistry

    In Chemistry: what is ph during the titration of 20.00ml of 0.1000m triethylamine (ch3ch2)3n (kb=5.2x 10-4) with 0.1000m HCL solution after the additions of titrant : a) 0ml (b) 10.00ml (c) 19.00ml (d)15.00ml (e) 20.00ml (f) 25.00ml

  22. science

    How many grams of hydrochloric acid are required to react completely with 4.30g of zinc? How many molecules of gas will be produced? 1. Write the balanced chemical equation. Zn + 2HCl ==> ZnCl2 + H2 2. Convert grams Zn to mols. mols = grams/atomic mass Zn.

  23. Chemistry

    for the redox reaction given in the chemical equation Pb(OH)4^2- (aq) + ClO- (aq) –> PbO2 (s) + Cl- (aq) For the oxidation half reaction I got Pb(OH)4^2- (aq) –> PbO2 (s) + 2H2O (l) + 2e- For the reduction half reaction I got 2e- + 2H2O(l) + ClO-(aq) –>

  24. Chemistry

    How many milliters of 1.80M HCl are required to react with 30.0 grams of calcium hydroxide according to the given equation: CA(OH)2(s) + 2HCl(aq)> CaCl2(aq) + 2H2O(l)

  25. Chemistry

    What is the theoretical yield of calcium carbonate if 2.97 grams of calcium chloride dihydrate reacts with excess sodium carbonate according to the balanced chemical reaction shown below? CaCl2•2H20(aq)+Na2CO3(aq)->CaCO3(aq)+2NaCL(aq)+2H20(I) Please use

  26. Equilibrium Consentration

    At a certain temperature, the reaction H2(g)+ Cl(g)=2HCl(g)has Kc = 5 x 10^8. If a reaction mixture at equilibrium contains 0.48 M of H2 and 0.23 M of Cl2, what is the concentration of HCl? I was wondering if I had to rearrange the equilibrium constant

  27. 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

  28. Chemistry

    For the reaction CaCO3(s)+ 2HCl(aq)= CaCl2(aq)+ CO2(g)+ H2O(l) how many grams of CaCl2 can be obtained if 14.6 g HCl is allowed in CaCO3?

  29. Chemistry

    1. Calcium carbonate reacts with HCl according to the following equation: 2HCl(aq)+CaCO3(s)→CaCl2(aq)+H2O(l)+CO2(g) How many moles of HCl are in 65 mL of 0.15 M HCl? 2. What mass of calcium carbonate is needed for complete reaction with the HCl in (a)?

  30. Chemistry

    Antacid neutralizes stomach acid by the following reaction: Mg(OH)2 + 2HCl —–> MgCl2 + 2H2O Calculate the amount of Mg(OH)2 (in grams) needed to neutralize 2.5 grams of HCl.

  31. chemistry

    CaCO3(s)+2HCl(aq)–>CaCl2(aq)+H2O(l)+CO2 (g) How many grams of calcium chloride will be produced when 31g of calcium carbonate are combined with 11 g of HCl? I have 0.3097 moles of CaCO3 and 0.30169 moles of HCl…I get stuck at that point

  32. Honors Chemistry

    How do I write a complete ionic equation and net ionic equation for: 2HCl(aq)+Ca(OH)2(aq) ¨ 2H2O(l)+CaCl2(aq) ?

  33. Science

    Which conversion factor should be used to solve the following problem? How many moles of water (H2O) would be produced from the reaction of 3.25 moles of hydrochloric acid (HCl) reacting with excess calcium hydroxide Ca(OH)2? Ca(OH)2 +2HCl –> CaCl2 + 2H2O

  34. Chemistry

    How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I’ve concluded the answer is 0.02 moles of H2, but I’m doubting myself a lot because I don’t understand the aspects of the balanced chemical equation and

  35. Science

    if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

  36. chemistry

    How many grams of Mg(OH)2 are needed to neutralize 55 ml of 0.25 M HCl . according to the following reaction. (show all calculations for credit) Mg(OH)2 (aq) + 2HCl(aq) — MgCl2 (aq) + 2H2O(l)

  37. Chemistry

    Use the equation below to answer the following question. How many grams of calcium chloride are produced from 19.3 g of HCl? 2HCl + Ca(OH)2 à 2H2O + CaCl2 Give your answer in correct sig digs and correct label.

  38. chemistry

    Trial 1 Volume of HCL is 2.51 mL Molarity of the HCL is 0.10 M Mols HCL = L x M = 0.0251 L x 0.10 M = 0.00251 mol/L The equation for the titration is Ca()H)2 + 2HCL –> CaCl2 + 2H2O I will now take 0.5 mols HCl to give mols of OH- 0.00251 mol/L x 0.5 =

  39. Chemistry

    I posted before about designing a procedure to determine two unknowns (1 solid, 1 solution). The possible solutions were: NaCl, CaCl2, CuSO4, NaOH,Ba(OH)2, HCl, HNO3, or H2O. The reagents given are: NaOH, HCl, AgNO3, Zn metal, Na2SO4, and H2O. The

  40. chemistry

    Hi! i’m kinda having trouble getting this.. Don’t understand it really from Ca(OH)2 + 2HCl—–> CaCl2 + 2H2O How do i calculate Ca+? :You need much more information. 1) do you mean the concentration of Ca+ ion? 2) is there excess HCl? What is given? ok It

  41. Chemistry

    1)The following balanced chemical equation represents the reaction of calcium carbonate CaCO3 (s), with hydrochloric acid : CaCo3(s) + 2HCl (aq) -> CaCl2(aq) + CO2(g) + H2O(l) If 155 g of calcium carbonate reacts with 245 g of hydrochloric acid, what mass

  42. Chemistry

    Calcium carbonate reacts w/stomach acid according to the following chemical equation. CaCO3+2HCl(aq)-> CaCl2(aq)+H2O(l)+CO2(g) A. Balance the eqaution B. Tums is one commercially sold antacid that contains CACO3. If Tums is added to 20.0ml of 0.400 M HCl,

  43. chemistry

    1.If its molar solubility is designated by “x”, then which of the following expressions best represents the solubility product for the substance Ag2SO4? a) x2 b) 27×4 c) 4×3 d) 108×5 e) 3×4 2. Consider the equilibrium, 4HCl(g) + O2(g) 2H2O(g) +

  44. Chemistry 104

    What mass (in grams) of calcium carbonate is needed to react completely with 73 mL of 0.10 M HCl according to 2HCl + CaCO3 –> CaCl2 + H20 + CO2?

  45. Chemistry

    Consider the reaction of magnesium metal with hydochloric acid to produce magnesium chloride and hydrogen gas. If 3.85 mol Mg and 3.85 mol of HCl are reacted, how many mol of oxygen are left over? I balanced the equation and got Mg(OH)2+2HCl=MgCl2+2H2O.

  46. Chemistry

    0.688g of antacid was treated with 50.00ml of 0.200M HCl. The excess acid required 4.21 mL of 1.200 M NaOH for back-titration. What is the neutralizing power of this antacid expressed as mmol of HCl per gram of antacid? I think the answer should be:

  47. Chemistry

    I have two substances potassium sulfate and potassium carbonate. They are unlabelled and I need to know which one is which. If I add HCl to each substance ie K2SO4(s) + 2HCl(aq)–>2KCl(aq) + H2SO4(aq) K2CO3(s) + 2HCl(aq)–> 2KCl(aq) + H2O(l) + CO2(g) What

  48. chemistry

    How many milliliters of 0.237 M HCl are needed to react with 52.2g of CaCO3? 2HCl(aq) + CaCO3(s) –> CaCl2(aq) + CO2(g) + H2O(l)

  49. chemistry

    Hi, I posted this question earlier but still need some help: 1.3188g of antacid is weighed and mixed with 75.00mL of excess 0.1746 M HCl. The excess acid required 27.20 mL of 0.09767 M NaOH for back titration. Calculate the neutralizing power of the

  50. Chem-Stoich

    A 1.605g sample of dry calcium carbonate and calcium chloride mixture was dissolved in 35.00mL of 1.000mol-dm-3 hydrochloric acid solution. The only portion of the mixture that reacts with the hydrochloric acid solution is the calcium carbonate. What was

  51. Chemistry

    If a tablet of TUMS contains 500mg of the active ingredient, CaCO3, how many tablets would it take to neturalize the 1.5g of HCl? From balanced equation: CaCO3 + 2HCl = CaCl2 + H2O + CO2

  52. Chemistry

    Calculate how many grams of the product(s) would be produced by complete reaction of 0.125 mole of the first reactant. CaCO3 + 2HCl –> CaCl2 + CO2 + H2O

  53. Chemistry

    Consider the following chemical reaction 2HCL+ Ca(OH)2 CaCl2+2H2O You have mixed 30.00ml of 0.150 M HCl solution with 20.00ml of 0.100m Ca(OH)2 solution what is the molarity of the HCl, Ca( OH)2 and CaCl2 after the reaction has stopped

  54. Chemistry

    Consider the following chemical reaction 2HCl+Ca(OH) CaCl+2H2O you have a mixed solution with 20.00mL of 0.100M Ca(OH)2 solution What is the molarity of the HCl,Ca(OH)2 and CaCl2 after the reaction has stopped?

  55. Chemistry

    Hello! I am having a little difficulty answering these two questions on my homework, I was wondering if anyone could please help me out! Thank you! 1) Consider the following balanced chemical equation for the neutralization reaction of calcium hydroxide

  56. Physical Science

    5. What reactions occurs when a solution of hydrochloric acid, HCl, is mixed with a solution of calcium hydroxide, Ca(OH)2? (A) Cl + Ca(OH) –> HCa + Cl(OH)2 (B) HCl + Ca(OH)2 –> H(OH)2 + CaCl (C) 2HCl + Ca(OH)2 –> 2H2O + CaCl2 (D) 2HCl + Ca(OH)2 –>

  57. Science

    Which conversion factor should be used to solve the following problem? How many moles of water (H2O) would be produced from the reaction of 3.25 moles of hydrochloric acid (HCl) reacting with excess calcium hydroxide Ca(OH)2? Ca(OH)2 +2HCl –> CaCl2 + 2H2O

  58. Chemistry

    Are these reactions correct? I was told to do them in “reaction de deplacement simple”, or simple moving reaction, I think. 1. Mg + 2HCl = H2 + MgCl2 2. Li + HCl = H2 + LiCl 3. Fe + 2HCl = H2 + FeCl2 4. Zn + 2HCl = H2 + ZnCl2 5. Ca + 2HCl = H2 + CaCl2 6.

  59. chemistry

    if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

  60. Chemistry

    In the reaction Ca(OH)2 + 2HCL -> CaCl2 + 2H2O: How many kilograms of H2O will be produced when 0.0948 Kg of Ca(OH)2 react with excess hydrochloric acid?

  61. chemistry

    How many grams of CaO (56.08) are required for complete reaction with HCl (36.46) in 275 mL of a 5.90 M HCl solution? CaO + 2HCl –> CaCl2 + H2O.

  62. chemistry

    the reaction is……CaCO3+2HCl—->CO2+H2O+CaCl2. what mass of HCl will be neutralized by 0.50g ofCaCO3? How do i figure this out in a non-complicated way??

  63. Chemistry

    30g of TiCl4 is mixed with 18g of water to from TiO2 and HCl. Write the chemical reaction and balance it.How much TiO2 is produced. my answer: TiCl4+2H2O= TiO2+4HCl

  64. ACS

    Whatis the molarity of an HCl solution if 25mL of this solution require 19.58mL of 0.1062M Sr(OH)2 solution for complete reaction? The reaction is give below Sr(OH)2 + 2HCl –> SrCl2 + 2H2O

  65. science

    If 20g of Ca(0H)2 took part in the following reaction, how much CaCl2 would be formed. Ca(0H)2 + 2HCl to CaCl2 +2H20

  66. Chemistry

    A sample of ca(oh)2 is allowed to stand in distilled water until a saturated solution forms. A 50.00 mL sample of this saturated solution is neutralized with 24.4 mL of 0.05 mol/L Hcl 2hcl+ ca(oh)2>cacl2+2h2o Use this information to calculate the ksp for

  67. 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

  68. Chemistry

    When 1.07E-1 g of Zn(s) combines with 5.64E1 mL of HCl(aq) in a coffee cup calorimeter, all of the zinc reacts, which increases the temperature of the HCl solution from 2.32E1 °C to 2.48E1 °C: Zn(s) + 2HCl(aq) → ZnCl_2(aq) + H_2(g) Calculate the

  69. Chemistry

    10.0 mL of a 0.300M NH3 solution is titrated with a 0.100M HCl solution. Calculate the pH after the following additions of HCl. 0.00mL 10.00mL 30.00mL 40.00mL

  70. Science

    Hiiii! I was wondering about getting some help real quick. 1. A student mixed two clear liquids together in a beaker and a solid precipitate formed. His data is shown in the table below. Liquid reactant A – 10g Liquid reactant B – 17g Beaker + solid

  71. 10th grade

    what chemicals are being added together in the chemical equation of 2HCL + Ca -> CaCl2 + H2

  72. Chemistry

    Will the following reactions mixed together cause a precipitate reaction, released gas reaction, or no reaction. Ba(NO3)2 mixed with NaCl Ba(NO3)2 mixed with HCl Ba(NO3)2 mixed with Na2CO3 Ba(NO3)2 mixed withNa3SO4 also Ba(NO3)2 is soluble and a solid and

  73. Chemistry

    Is this equation balanced? 2HCl(aq) + Ca(OH)2(aq) ——-> 2H2O + CaCl2 yes. It helps in these to write water as HOH, in this you would have had 2 HOH

  74. Chemìstry

    The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL

  75. Chemistry

    The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL

  76. Chemistry

    If I want to produce 50 grams of MgCl2, how many mL would I need of 0.75 HCl? 1Mg(OH)+2HCl—-> 1MgCl2+ 2H2O

  77. chemistry

    Suppose 150.0 mL of 0.50 M HCl and 150.0 mL of 0.50 M NaOH, both initially at 24.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 27.4°C. Assuming that the solutions have the same heat capacity as pure water, compute

  78. Chemistry

    Tums tablets contain CaCO3 that reacts with stomach acid as follows: CaCO3 (s) + 2HCl (aq) → CaCl2 (aq) + H2O (l) + CO2 (g)  Suppose the tablet was analyzed by adding 50.00 mL of 0.200 M HCl, which resulted in leftover excess HCl. The excess HCl was

  79. Chemistry

    I’m about to do the second part of a Limiting Reagent laboratory tomorrow. There are a few questions that are giving me trouble on the pre-lab assignment. In the first lab period, we measured the amount of H2 gas produced in a reaction of Mg and 10 mL of

  80. Chemistry

    a 110 g solid sample that is a mixture of CaCO3 and CaCl2 is reacted with 1.50 L of 1.45M HCl. Of the calcium salts, only calcium carbonate reacts with HCl- the reaction forms CaCl2 and CO2. The excess/unreacted HCl requires 0.850 L of 0.543 M NaOH to

  81. Chem 121

    Use Hess’s law and the reactions 1) CH 4(g)+ Cl 2 (g)—>CH 3 CL(g) + HCl (g) 2) CH 3 Cl (g) + Cl 2 (g)—> CH 2 Cl 2 (g) + HCl (g) to determine the enthalpy for the reaction CH4 (g) + 2CH 2 (g)—> CH2 Cl 2 (g) + 2HCl (g)?

  82. chemistry

    Balanced equation: 2HCL+CaCO2>CaCl2+CO2+H2O what volume of 6.00 M HCL is needed to completely react with .750 moles of CaCO3

  83. chemistry

    Balanced equation: 2HCL+CaCO2>CaCl2+CO2+H2O what volume of 6.00 M HCL is needed to completely react with .750 moles of CaCO3

  84. Chemistry

    What are the Oxidation and Reducation reactions for these equations : BaCl2 + NaHCO3 -> BaCO3 + NaCl + HCl (carbon is the reduction reaction, but I don’t know what the oxidation reaction is) CaCO3 + HCl -> CaCl2 + CO2 + H2O

  85. chemistry

    what volume of carbondioxide is produced when 10g of Hcl reacts completely with caco3 caco3+2HCl=cacl2+H2o+Co2 moles ofHCl=10/36.5=0.27 volume:volume 2HCl:CO2 2:1 24000*2:24000 480000:24000 2700:x x=1350cm3

  86. Chemistry

    Please help me answer the question: What does it mean Write a net ionic equation for the reaction 2HCl + Ca(OH)2 -> CaCl2 + 2H20

  87. chemistry

    At what temperature will the following reaction happen spontaneously, given that ΔH=8.91×103J and ΔS= –219.20 J/K? CaSO4(s) + 2HCl(g) → CaCl2(s) + H2SO4(l)

  88. chem hwk help!

    Given the following reaction: 3 CaCl2 + 2 H3PO4 Ca3(PO4)2 + 6 HCl How many grams of H3PO4 are needed to react completely with 1.837 g of CaCl2? I don’t understand at all

  89. Chemistry

    The lab we are doing is: Determining the ENTHALPY of a Chemical Reaction. There are three reactions. Reaction 1: NaOH + HCl, Reaction 2: NaOH + NH4Cl, and Reaction 3: HCl + NH3. I found the max temp, initial temp, and temp change of each reaction. Can you

  90. Chemistry: Check my answers?

    Write “yes” or “no” below if the chemical equation is balanced or not. 1. 2H2 + O2 —> 2H2O 2. S8 + 12O2 —> 8SO3 3. HgO —> Hg + O2 4. Zn + HCl —> ZnCl2 + H2 5. 2Na + 2H2O —> 2NaOH + H2 6. 2Al + 3FeO —> Al2O3 + 3Fe 7. 4Si2H3 + 11O2 —>

  91. Chemistry

    Write “yes” or “no” below if the chemical equation is balanced or not. 1. 2H2 + O2 —> 2H2O 2. S8 + 12O2 —> 8SO3 3. HgO —> Hg + O2 4. Zn + HCl —> ZnCl2 + H2 5. 2Na + 2H2O —> 2NaOH + H2 6. 2Al + 3FeO —> Al2O3 + 3Fe 7. 4Si2H3 + 11O2 —>

  92. Chemistry

    For the titration of 50.00mL of 0.1000 M ammonia with 0.1000 M HCl, calculate the pH (a) before the addition of any HCl solution (b) after 20.00mL of the acid has been added

  93. Chemistry

    Suppose that 85 mL of 0.4 M NaF and 50 mL of 0.4 M HCl are mixed. What is the K for the dominant equilibrium in terms of Ka’s, Kb’s, Kw etc.? Ka of HCl 1/Ka of HCl Ka of HF 1/Ka of HF Kb of F- 1/Kb of F- Kb of Cl- 1/Kb of Cl- Kw 1/Kw There is no reaction.

  94. Chemistry

    Hi I hope you can understand this…the Na ion is attached to the oxygen using ionic bonding. The / are meant to symbolize the hydrocarbon chain. The || is a double bond that bonds oxgen to carbon. O || Na O////// + CaCl2 -> ? + NaCl To give you some

  95. chemistry

    Using the equipment below, explain how to prepare a 0.00052M HCl solution from a reagent bottle containing 0.13M HCl using only the equipment listed below. Note, you may make multiple dilutions, but you are not allowed to combine volumes. For example, if

  96. Ap Chem

    If in an experiment we’re working with Mg, HCl acid, and H20. We stick the magnesium in the acid mixed with water and the Mg dissolves. One of the products is hydrogen gas. If the water in the tube is evaporated, the other product, a white salt remains.

  97. CHEM

    How do I work the following question? I found the amu of CaCO3=101.0872g/mol; 2HCL=72.92128g/mol; H2O=18.1582g/mol;CO2=44.0098g/mol; and, CaCl2=110.9834g/mol. You carefully weigh out 10.00g of powder and add it to 40.50g of solution. You notice bubbles as

  98. Chem 100L

    Calculate the molarity of an aqueous NaOH solution if 32.00ml of it is required to titrate .6789g of oxalic acid to a phenophthalein end-point. the balanced chemical equation is H2C2O4 + 2NaOH —> Na2C2O4 + 2H2O

  99. Chemistry

    Calculate the molarity of an aqueous NaOH soultion if 32.00ml of it is required to titrate. 0.6789 g of oxalic acid to phenolphthalein end point. The balanced chemical equation is H2C2O4 + 2NaOH-> Na2C2O4 + 2H2O

  100. chemistry

    A TUMS tablet was dissolved in 110.00 ml of 0.1022 M HCl and analyzed for CaCO3 according to the procedure described in the lab manual. It took 7.48 ml of 0.1005 M NaOH to reach the endpoint. Calculate the mass of CaCO3 in TUMS tablet to the correct number

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