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December 18, 2014

Search: Gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane ({\rm CH}_{4}) and liquid water

Number of results: 42,879

chem
In the reaction of calcium metal and water, 50.0 mL of hydrogen gas is collected over water at 25.0 degrees C with a total pressure of 752 mmHg. Calcualte the number of moles of hydrogen gas that was produced. Do we just plug this into n=pv/rt ? or is there like an extra step?
May 11, 2008 by natash

Chemistry
At 10C zinc reacts with 2.0M sulphuric acid to produce 17 mL hydrogen gas in 20 s a) what is the rate of this reaction? b)What volume of hydrogen might be produced in 20 s at 30C?
July 11, 2013 by Tash

chemistry
A 500. mL sample of hydrogen gas is collected over water at 27 C. The pressure of the hydrogen and water vapor mixture is 78.5 kPa and the vapor pressure of water at 27 C is 3.6 kPa. What is the partial pressure of the dry hydrogen gas?
February 23, 2014 by Gabby

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 at 30.0 oC and 0.660 ...
July 20, 2011 by terria

Science
Which of the following compounds in the liquid phase can be considered an electrolyte? a) CO 2 (carbon dioxide) b) CuO (oxidized copper) c) H2O ( distilled water) d) H2O2 ( Hydrogen peroxide) e) NaCI (sodium chloride)
April 30, 2008 by Annie

Chemistry
A sample of gaseous PCl5 was introduced into an evacuated flask so that the pressure of pure PCl5 would be 0.54 atm at 425 K. However, PCl5 decomposes to gaseous PCl3 and Cl2, and the actual pressure in the flask was found to be 0.85 atm. Calculate Kp for the decomposition ...
February 13, 2013 by Margaret

Chemistry
Xe(g) + F2(g) ----uv light---> Xe F2(s) XeF2(g) + 2F2(g) ---catalyst---> XeF6(s) XeF6(s) + H2O(l) ------> Xe O3(s) + 6HF(g) Looking at these three reactions respond the following: a) For each 0.0250 grams of xenon hexaflouride that reacts, what mass of water is ...
January 22, 2012 by Alexandra

Chemistry
Identify the following chemical equations by type. 1. If an electric discharge produces 800 cm3 of ozone (O3), how many cm3 of oxygen (O2) are required? 3O2(g) ---> 2O3(g) 2. When 75.0 dm3 of O2 react with an excess of glucose (C6H12O2), according to the reaction below, ...
September 30, 2014 by Rikki

Chemistry
I am to use this formula to find ΔHf,methane: ΔHcomb=2ΔHf,water+ΔHf, carbon dioxide-ΔHf,methane-2ΔHf,oxygen For ΔHcomb, the value is 884 KJ/mol For ΔHf,water, the value is -285.8 For ΔHf,carbon dioxide, the value is -393.5 ...
July 20, 2014 by Liz

chemistry
A mixture of 2.0 mol H2 and 1.0 mol of O2 is placed in a sealed evacuated container made of a perfect insulating material at 28C. The mixture is ignited with a spark and it reacts to form liquid water. What is the final temperature of the water
November 22, 2010 by John

chemistry
1. A sample of 10.7 g of CO reacts completely with O2 to form CO2. How many grams of CO2 will be formed? 2. Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2 g of ammonia are reacted with 787.3 g of carbon dioxide. Which of the ...
October 4, 2011 by Anonymous

Chemistry
In an experiment, you fill a heavy walled 5.00 L flask with methane gas, CH4. If the flask contains 7.13g of methane at 19 degrees C, what is the gas pressure. Use the ideal gas law. Can some one help me get started on this problem please
October 23, 2007 by Lauren

chemistry
From data below, calculate the total heat (J) needed to convert 0.298 mol of gaseous ethanol (C2H6O) at 401C and 1 atm to liquid ethanol at 25.0C and 1 atm.
October 6, 2010 by myles

Chemistry
1) When calcium is reacted with cold water, the equation is as follows: - Ca(s) + H2O(l) -->Ca(OH)2(aq) + H2(g) Isn't Ca(OH)2 insoluble? Why is the state symbol aqueous? When I conducted the experiment in a test tube with cold water, I got a white suspension (precipitate). ...
January 31, 2009 by candy

Chem
Can someone explain how to do this problem? For the equilibrium reation below, 288g of liquid water and 448 g of carbon monoxide are placed in an 8.00 liter container and heated to 900 K. If the value of K_c for the reaction at 900 K is 1.56, what are the equilibrium ...
May 25, 2010 by Anonymous

chemistry-please check my work
Determine the mass of carbon monoxide that is produced when 45.6 g of methane CH4 react with 73.2 g of oxygen gas, O2. The products are CO and H2O. Please check my work: CH4 + 3O2 ---> 2CO + 2H20 nCH4=2.84 mol nO2=4.58 mol Limiting Reactant: 1 mol CH4/2.84 mol CH4 = 3 mol ...
May 23, 2008 by Sarah H

chemistry
if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of gaseous water collected (assuming none of it condenses)? 2H2(g) + O2(g) => 2H2O(g)
January 31, 2008 by Theordore

chemistry
if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of gaseous water collected (assuming none of it condenses)? 2H2(g) + O2(g) => 2H2O(g)
March 10, 2011 by Anonymous

Chemistry (bond energies)
Why is it possible to have an accurate value of the energy of a hydrogen-hydrogen bond, but not of a carbon-oxygen bond? I know carbon and oxygen can form both double and single bonds, and hydrogen can only form single bonds. But apparently C=O has two different bond energies...
November 27, 2008 by Lucy X

stoichiometry
Ammonia gas reacts with oxygen gas according to the following equation: 4NH3 + 5O2----4NO + 6H2O a. How many moles of oxygen gas are needed to react with 23 moles of ammonia? (29 mole) b. How may grams of NO are produced when 25 moles of oxygen gas react with an excess of ...
February 9, 2011 by Jonathan

chemistry
If 36 grams of water yield 4.0 grams of hydrogen gas after a chemical reaction, how many kilograms of hydrogen gas will you obtain from 4.35 x 10^4 milligrams of water?
June 14, 2013 by Anonymous

organic chemistry
i'm having trouble figuring out my unknown compound. The elemental analysis is 87.28%carbon and 12.72% hydrogen for my unknown liquid, and for my solid unknown the elemental analysis is 79.22% carbon and 5.7% hydrogen and 15.98% oxygen. I'm not able to figure out the molecular...
August 19, 2009 by susan

Soil Chemistry
Understanding the strengths of carbon halogen bonds can help us to understand the behavior of CFCs and related molecules. Arrange the members of the set of carbon halogen bonds shown below in the order of bond strength. A) carbon dioxide B) methane C) ozone D) water A) c > ...
July 6, 2014 by John

Chemistry
Glucose, C6H12O6, is a good source of food energy. When it reacts with hydrogen, carbon dioxide, and water are formed. How many liters of Co2 are produced when ___ grams of glucose completely react with oxygen?
May 26, 2011 by breanna

Chemistry
Why is water liquid and carbon dioxide gas? Based on things like polarity, polar vs. non-polar
March 25, 2009 by Sabrina

Chemistry
In the balanced equation for the combustion of CH3CH2OCH2OCH2OCH2CH3, the coefficient of the organic compound is... the coefficient of oxygen gas is the coefficient of carbon dioxide gas is the coefficient of liquid water is hint: in case your view of the formula is ...
July 8, 2012 by Abby Walker

chemistry
A 2.30-mL sample of methane gas (density 0.112 g/cm3) was completely combusted. If the percent yield of each of the combustion products is 87.65%, calculate the actual yield in grams of carbon dioxide gas.
October 23, 2010 by gary

AP CHEMISTRY
A)In a chemical reaction two gases combine to form a solid. What do you expect for the sign of ΔS? B) For which of the following processes does the entropy of the system increase? (Select all that apply.) -> alignment of iron filings in a magnetic field -> the ...
March 19, 2012 by HELP PLEASE

Chemistry
What is the mass of carbon dioxide if 100 grams of methane is oxidized to carbon dioxide and water?
April 27, 2011 by joy

Chemistry
What is the mass of carbon dioxide if 100 grams of methane is oxidized to carbon dioxide and water?
April 28, 2011 by joy

chemistry
10. If the calcium oxide were obtained by the heating of calcium hydroxide, how much hydroxide would be needed to obtain the 15.0 g? 11. If the 15.0 g of calcium oxide in the above problems were allowed to react with water, what amount of calcium hydroxide would be produced? ...
December 13, 2012 by greg

chrmistry
Can someone explain me this question: What assumption must we make about the dissolving of a gas in water for the solubility evidence to be valid? what does the question really wants to ask??? I mean is it the observations when the gas dissolves in the liquid or the reason why...
May 25, 2013 by lg

chemistry
iron 3 oxide reacts with carbon monoxide according to the following equation: fe2O3+3Co-->2Fe+3Co2 a) how many moles of ions are produced when one mole of iron 3 oxide reacts b) calculate the volume of carbondioxide produced when one mole of iron 3 oxidereacts
September 6, 2010 by honeybee

Chemistry
Oxygen reacts 1:2 with sodium and is a colourless gas; chlorine reacts 1:1 with sodium and is a yellow gas; neon does not reacts with sodium and is a colourless gas. Suppose that a new element , pretendium, has been dicovered, and it is noted that this element reacts 1:1 with ...
September 13, 2010 by Anonymous

Chemistry
Oxygen reacts 1:2 with sodium and is a colourless gas; chlorine reacts 1:1 with sodium and is a yellow gas; neon does not reacts with sodium and is a colourless gas. Suppose that a new element , pretendium, has been dicovered, and it is noted that this element reacts 1:1 with ...
September 14, 2010 by Anonymous

Chemistry Help!!
sodium metal reacts violently with water to produce aqueous sodium hydroxide and hydrogen gas. calculate the enthalpy change for this reaction.
October 11, 2011 by Maci

Chemistry
Any one there who would help me with my pr0blem!Please help me,tnx! What is the mass of carbon dioxide if 100 grams of methane is oxidized to carbon dioxide and water?
April 28, 2011 by joy

Chem
1N2(g) reacts with H2(g) to form NH3(g), gaseous ammonia. Show balanced thermochemical equations based on both one mole and two moles of NH3(g). Determine Ho ( for both reactions using Table 6.2 (Hof). Use the summation equations. Show your calculations N2 +H2...
October 20, 2014 by Feather

chemistry
An unknown compound contains only carbon, hydrogen, and oxygen (CxHxOx). Combustion of 3.50G of this compound produced 5.13G of carbon dioxide and 2.10G of water A.How many moles of carbon, , were in the original sample? b. How many moles of hydrogen, , were in the original ...
February 8, 2014 by URGENT!

Chemistry
A compound containing 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide and water. What element should you look at first in balancing this equation? A. oxygen B. Hydrogen C. ...
November 7, 2009 by William

science
Will you please check? Physical or chemical properties 1. bitter taste = physical taste 2. can neutralize a base= physical property 3. boiling point = physical property 4. reacts with a base to form water= physical 5. reacts with acid to form hydrogen = chemical property 6. ...
September 12, 2012 by Reed

chem
The reaction AB(aq)->A(g)+ B(g)is second order in AB and has a rate constant of 0.0282 M^{-1} s^{-1} at 25 Celsius. A reaction vessel initially contains 250 mL of 0.105 M AB which is allowed to react to form the gaseous product. The product is collected over water at 25 ...
January 13, 2012 by Yuni

Chemistry
8.40 grams of Hydrogen gas reacts with 48.2 grams of Oxygen gas. Give the mass of the water vapor produced and the mass of the excess reactant left over. Can somebody please explain stoichiometry to me? I've failed the test and the retest. I'm usually able to balance the ...
November 29, 2010 by Anna

Chem (repost)
Hydrogen and carbon dioxide react at a high temperature to give water and carbon monoxide. H2(g) + CO2(g) --> H2O(g) + CO(g) (b) Suppose 0.052 mol each of H2 and CO2 are placed in a 1.5 L container. When equilibrium is achieved at 986C, what amounts of CO(g) and H2O(g), in...
April 17, 2011 by Rachel

chemistry
Write a balanced net ionic equation for the following reactions in acid soln Hydrogen Peroxide reacts w/an aqueos soln of sodium hypochlorite to form oxygen and chlorine gas
November 18, 2011 by anonymous

Chemistry
1. A cylinder of Xenon has a volume of 750. ml. At 25.0C the cylinder has a pressure of 655 torr. How much Argon is present in the cylinder? a. 240. moles b. 0.0264 moles c. .315 moles d. 26.5 moles 2.If a 25 liter cylinder of gaseous ammonia at atmospheric pressure (1.0 atm...
March 4, 2011 by E

Chemistry
When 34.5 L ammonia and 39.5 L oxygen gas at STP burn, nitrogen monoxide and water are produced. After the products return to STP, how many grams of nitrogen monoxide are present? 4NH3+5O2->4NO+6H2O
October 13, 2008 by Niki

Ecology
Aside from lead, the two air pollutants most hazardous to human health are: A. sulfur dioxide and carbon monoxide. B. ozone and sulfur dioxide. C. ozone and fine airborne particulates. D. nitrous oxides and carbon monoxide. is it A
July 31, 2014 by Amy

Chemistry
Many homes in rural America are heated by propane gas, a compound that contains only carbon and hydrogen. Complete combustion of of a sample of propane produced 2.641 grams of carbon dioxide and 1.422 grams of water as the only products. Find the empirical formula.
August 16, 2010 by Anonymous

Chemistry
How many kilograms of water at 15oC can be heated to 95oC by burning 143 grams of methane, CH4, assuming that 100% of the heat is used to heat the water. The heat of combustion of methane is 891 kJ per mole of methane. (The specific heat of water is 4.184 J/goC.) I am not sure...
January 30, 2012 by Hannah

chemistry
Write Skeleton equations for these reactions. A) Heating Copper(II) sulfide in the Presence of diatomic oxygen produces pure copper and sulfur dioxide gas. B)When heated, baking soda (Sodium hydrogen carbonate) decomposes to form the products sodium carbonate, carbon dioxide, ...
February 28, 2010 by Jack

chemistry please help
The reaction between hydrogen and chlorine gases gives hydrogen chloride gas in the following reaction: H2(g) + Cl2(g) = 2HCl(g) It is found experimentally that 1 mole of H2 gas reacts with 1 mole of Cl2 gas at constant temperature and pressure, to release 184 kJ of heat. What...
January 10, 2013 by john

chemistry
Use the kinetic theory of gases to explain this statement: No gas exhibits ideal behavior at all temperatures and pressures. Explain why the rates of diffusion of nitrogen gas and carbon monoxide are almost identical at the same temperature.
March 4, 2008 by jodi

Chemistry
Please write the balanced chemical equation for reaction the following chemical reaction ozone gas, O3, reacts with 3,3,4,4,5,5-hexanmethyl-1-hexyne, H-C≡C-C(CH3)2-C(CH3)2-C(CH3)2-CH3 to produce carbon dioxide gas, CO2 , and water gas, H2O When balancing the equation , ...
November 8, 2012 by Amanda

chemisty
in a soda-acid fire extinguisher, concentrateed sulfuric acid reacts with sodium hydrogen carbonate to produce carbon dioxide, sodium sulfate and water. How many moles of sodium hydrogen carbonate would be neefed to react with 150.0 grams of sulfuric acid? How many moles of ...
February 21, 2008 by leslie

AP Chemistry
2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g) When 0.400 mole of potassium reacts with excess water at STP, what is the volume of hydrogen gas produced? the answer is 4.48 liters but I keep getting wrong numbers! please help! Thanks!
October 2, 2008 by Andrew

chemistry
In planning to administer a gaseous anesthetic to a patient, A) why mus the anthesiologist take into account the fact that during surgery the gaseous anesthetic is used both at room temperature (18C) and at the patients body temperature (37C)? B) What problems might arise if ...
March 22, 2008 by Jonathan T

chemistry
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 of carbon were burned in the presence of 76.8 of oxygen, 12.8 of oxygen remained unreacted. What mass of carbon dioxide was produced?
September 17, 2010 by will

chemistry
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 25.2g of carbon were burned in the presence of 78.0g of oxygen, 10.8g of oxygen remained unreacted. What mass of carbon dioxide was produced?
September 7, 2011 by steph

Chemistry
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 25.2 of carbon were burned in the presence of 80.6 of oxygen, 13.4 of oxygen remained unreacted. What mass of carbon dioxide was produced?
September 24, 2012 by Hanna

Chemistry
A mixture of chromium and zinc weighing .362 g was reacted with an excess of hydrochloric acid. After all the metals in the mixture reacted 225 mL of dry hydrogen gas was collected at 27 C and 750 torr. Determine the mass percent Zn in the metal sample. [Zinc reacts with ...
March 4, 2007 by Kyle

10th grade chemistry
If an excess of nitrogen gas reacts with 25.0 L of hydrogen gas, according to the reaction below, how many L of ammonia will be produced? N2(g) + 3H2(g) ---> 2NH3(g)
May 29, 2012 by skyler

Chemistry
When 84.8 g of iron(III) oxide reacts with an excess of carbon monoxide, iron is produced. Fe2O3(s) + 3CO(g) ==> 2Fe(s) + 3CO2(g) what is the theoretical yield of iron?
March 28, 2010 by Kim

chem
Calcium metal and water produce hydrogen gas. If the volume of wet gas collected over water is 95.0 mL at 20 C and 758 mm Hg, what is the volume of dry gas at STP conditions? (The vapor pressure of water at 20 C is 17.5 mm Hg.)
April 3, 2013 by nurse

chemistry
Carbon is able to form large numbers of organic compounds because carbon can A.form 4 bonds B.form single, double and triple bonds C.form chains, rings, spheres and sheets D.the carbon-carbon bond is very stable E.all answers are correct
May 13, 2008 by Mable

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 2.0 M HCl. We varied ...
March 11, 2009 by Jake

chem stoichiometry
Acetylene(C2H2) burns in oxygen to form carbon monoxide and water. How many liters of oxygen(at STP) are needed to burn 25.0 L of acetylene (at STP)?
April 14, 2012 by linda

Chemistry
Oxygen gas and hydrogen gas are used to synthesize dihydrogen monoxide. A lab group utilizes 1.00 liters of oxygen and 1.01 liters of hydrogen to create 0.75 grams of product. How many milliliters of product should the group have expected to get? What will the [H+] ...
May 20, 2013 by Adam

chemistry
How many liters of hydrogen gas can be produced if 102 grams of methane gas (CH4) are combusted at 315 K and 1.2 atm? Show all of the work used to solve this problem. CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O(g)
December 19, 2011 by sarena

chemistry homework help!!
Calcium Hydride reacts with water to produce hydrogen gas: CaH2(s) + H2O (l)---> Ca(OH)2 (aq) + H2 This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are ...
February 16, 2012 by danielle

Chemistry
Given the data below, calculate the total heat (in J) needed to convert 20.0 g of liquid ethanol (C2H5OH) at 40.0 oC to gaseous ethanol at 125 oC. A. 3.23 x 103 B. 3.67 x 103 C. 4.17 x 103 D. 2.08x104 E. 2.12 x 104
March 8, 2012 by Alex

chemistry
Suppose you have a mixture of hydrogen and methane (CH4) gases that are at equilibrium. What is the ratio of the average speed of the methane (CH4) relative to the hydrogen ? Express the answer as a fraction (e.g. 0.621). I know that im suppose to use the e=1/2mv2 but i don't ...
October 10, 2010 by Jazmin

Chemistry
I have a question about incomplete combustions. I think that you can have carbon monoxide, carbon dioxide, water and carbon or some combination of these in the products of incomplete combustions. Is this right? For Pentane, would it be correct to show one possible equation as ...
October 7, 2009 by Anne

sci.
How do you rank water in terms of density (solid liquid and gas)? (from least to greatest). I think it would be gas, solid, and liquid, but I just wanted to confirm this thanks
March 13, 2009 by Thalia

Chemistry
Larger amounts of methane, in the form CH4*6H20 is trapped at the bottom of the ceans in Clatharate compunds (formed when small molecules occupy the empty spaces in cage like structures). Calculate the mass of methane gas trapped with in one Kg of the hydrate
November 20, 2011 by Devin Boutte

chemistry
Which would produce greater number of moles of product: a certain amount of hydrogen gas reacting with oxygen gas to make water, or the same amount of hydrogen gas reacting with nitrogen gas to make ammonia? Why?
April 11, 2010 by tay

AP Chemistry
A 34.05 gram liquid sample of an unstable compound is deposited in a metal piston assembly that has a cylinder with a diameter of 20.0 cm. After the sample is added, the piston is placed in contact with the liquid and the piston vent is closed. This process removes all ...
September 26, 2012 by Jack

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008 by Mickey

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008 by MV

Chemistry
Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide (lime) with carbon. The unbalanced equation is CaO(s) + C(s) CaC2(s) + CO(g) Calcium carbide is useful because it reacts readily with water to form the flammable gas acetylene, ...
February 5, 2011 by Mariana

Chemistry
Oxygen gas and hydrogen gas are used to synthesize dihydrogen monoxide. A lab group utilizes 1.00 liters of oxygen and 1.01 liters of hydrogen to create 0.75 grams of product. How many milliliters of product should the group have expected to get? What will the [H+] ...
May 20, 2013 by Nick

Chemistry
What is the enthalpy change if 25.0 g of methane are burned? 890kJ of heat released for every mole of methane that reacts. CH4 + 2O2 = CO2 + 2H2O
March 18, 2014 by Tracy

chemistry
calculate the mass in grams of hydrogen chloride produced when 5.25 L of a molecular hydrogen measured at STP reacts with an excess of molecular chlorine gas
March 24, 2013 by jane

Chemistry
Write the balanced chemical equation for reaction the following chemical reaction ozone gas , O3 , reacts with 2,3,4,5-tetramethylheptane, CH3-CH(CH3)-CH(CH3)-CH(CH3)-CH(CH3)-CH2-CH3 , to produce carbon dioxide gas, CO2 , and water vapor, H2O
April 18, 2013 by Ashley

Chemistry
ASpirin, c9h8o4, is prepared by reating salicylic acid, c7h6o3, with acetic anhydride, c4h6o3, in the reaction. c7h6o3 + c4h6o3---> c9h8o4 + c2h4o2 A student is told to prepare 45.0 g of aspirin. she is also told to use a 55.0 % excess of acetic anhydride and to expect to ...
September 22, 2008 by Komal

chemisty
How many moles of carbon monoxide form at the same time that 0.337 mol CS2 forms?
May 4, 2010 by jake callienf

chemistry
a carbon containing 3 atoms of carbon and 8 atoms of hydrdren combinend in reactionwith oxygen molecules the 2 end products of this eqation are carbon dioxide co 2 an water what element should i look at first inn this oxygen hydrogen carbon or dioxide and wen finish balancing ...
May 12, 2008 by andrea

science
which of the following is a quantitative property of minerals ? a) cleavage b) hardness c) luster d) streak which of the following is not a characteristics of minerals ? a) occur in gaseous and liquid state b) formed by inorganic processes c) naturally occurring d) definite ...
January 6, 2014 by Victoria

science
'Imagine there is a tank of unknown gas that contains 53.31% carbon, 11.18% hydrogen, and 35.51% oxygen by mass. At 35.0 C and 0.455 bar, 2.00 L of the gas has a mass of 3.20 g. Using this information, answer the following questions. a.) What is the empirical formula of the ...
October 27, 2014 by samuel

Science
A sample of water decomposes to make 4g of hydrogen gas and 32g of oxygen gas. What mass of water decomposed? How do you know? Hint: The water decomposes into ONLY hydrogen and oxygen, and the total mass does not change in the process. It's called the Law of Conservation of ...
April 22, 2007 by AJ

Chemistry
Write a balanced equation: Aluminum reacts with aqueous hydrochloric acid to form hydrogen gas and aqueous aluminum chloride. I think: Al+HCl(aq)-->H(g)AlCl(aq) But I don't really know if I am doing it right or not
April 5, 2010 by Lou

CHEMISTRY
I've been trying to do this problem but I would get confused and stuck.. Consider a sample of a hydrocarbon at 0.959 atm and 298 K. Upon combustion the entire sample in oxygen, you collect a mixture of gaseous carbon dioxide and water vapor at 1.51 atm and 375 K. This mixture ...
November 7, 2008 by J

Chemistry
One mole of carbon (12.0 g) in the form of crystalline graphite is burned at 25 ◦ C and 1.000 atm pressure to form CO2(g). All of the heat produced is used to heat a 4560 g bath of liquid water, originally at 25 ◦ C. What is the final temperature of the water...
October 7, 2012 by Sam

Chemistry
43. List and describe three factors that influence solubility: (Source-wikipedia) The solubility of a given solute in a given solvent typically depends on temperature. For many solids dissolved in liquid water, the solubility increases with temperature up to 100 C. In liquid ...
November 1, 2010 by mysterychicken

Chemistry
Hydrogen and methanol (CH3OH) have both been proposed as alternatives to hydrocarbon fuels. a) Write balanced chemical equations for the complete combustion of hydrogen and the complete combustion of gaseous methanol. Combustion reaction for hydrogen: 2H2(g)+ O2 --> 2H2O(l...
November 4, 2010 by Jarrod

Chemistry
Can carbon monoxide leak (from a fireplace, barbeque, water heater)?
November 7, 2007 by Panda

Chemistry
1. Tin and oxygen gas are reacted together to form Tin (IV) oxide, a solid. If a piece of tin foil, 8.25cm x 21.5cm x 0.60mm (density = 7.28g/cm3) is exposed to oxygen and all the tin reacts, what is the mass of the oxidized tin foil? (98.4g) 2. From the information in ...
May 29, 2009 by Gweedo8

chemistry
Most natural gas consists of about 90% methane, CH4. Assume that the solubility of natural gas at 20 C and 1 atm gas pressure is about the same as that of CH4, 0.02 g/kg water. If a sample of natural gas under a pressure of 20 atm is kept in contact with 1.00 *10^3 kg of water...
March 8, 2010 by david

Chemistry
Ammonia is produced when Nitrogen gas reacts with Hydrogen gas, as shown by the equation below: N2 + 3H2 --> 2NH3 If the percentage yield is 90%, what would be your experimental yield of NH3 if 145.8g of N2 react? 2) 2Mg + O2 --> 2MgO A) If 50g of Mg reacts with 50g of ...
May 21, 2014 by Mark

Chemistry
Ammonia is produced when Nitrogen gas reacts with Hydrogen gas, as shown by the equation below: N2 + 3H2 --> 2NH3 If the percentage yield is 90%, what would be your experimental yield of NH3 if 145.8g of N2 react? 2) 2Mg + O2 --> 2MgO A) If 50g of Mg reacts with 50g of ...
May 21, 2014 by Mark

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