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March 17, 2014

# Search: "balanced equation for the reaction of the oxygen and the magnesium" including their physical states

Number of results: 73,168

Chemistry
When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced. O2M(s) ----> M(s) +O2(g) delta G= 290.5 Kj/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical ...
Tuesday, January 14, 2014 at 10:25pm by Angela

Chemistry
a mixture of 34.0g of ammonia and 50.0g of elemental oxygen react to form elemental nitrogen and water. Please write a balanced chemical equation for this reaction. Find the theoretical yield of water in grams and give the amount of excess reactant in grams
Monday, March 3, 2014 at 7:22pm by Tra

chemistry
Write the balanced equation of the reaction described below. Include the states (s, l, aq, g) for the reactants and products. When aqueous calcium chloride and sodium phosphate are mixed, solid calcium phosphate and acqueous sodium chloride are produced.
Tuesday, January 15, 2013 at 12:38pm by thad

Hi, please check my work: In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The balanced equation is: 4FeS + 7O2 --> 2Fe2O3 + 4SO2 Calculate the % yield. My Answer: nFeS=23.4g/87.92 g/mol =0.266 mol 4mol FeS / 0.266 mol = 7mol O2/ ...
Saturday, May 24, 2008 at 9:01pm by Sarah H

chemistry
Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 --> MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 13.2 g of Cl2 I got 7/24.3= .288 13.2/70.90= 1.861777 thats as far as i got and im stuck ...
Monday, September 20, 2010 at 10:19am by kellie

Chemistry 1 [more detailed]
You want the symbol equation. I wrote the word equation. You need to write the symbol for magnesium sulfide, magnesium and sulfur. What do you know about how to do this? What are you studying. What grade are you in? What part of the world?
Tuesday, April 29, 2008 at 9:27pm by DrBob222

to bobpursley
An emergency breathing apparatus often placed in mines works via the following chemical reaction: 4KO2(s) + 2CO2(g) to make 2K2CO3(s) + O2(g) If the oxygen supply becomes limited or if the air becomes poisoned, a worker can use the apparatus to breath while exiting the mine. ...
Thursday, March 1, 2007 at 8:15pm by Jenn

Chemistry
When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced. O2M(s) ----> M(s) +O2(g) delta G= 288.9 Kj/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical ...
Wednesday, March 14, 2012 at 11:51pm by Jerry

Chemistry
Did I do these right? Can someone let me know if I did them correctly? I had someone help me with the problems but know I want to make sure their the right answers? 1. Methane burns in oxygen according to the following equation: CH4 + 2O2 ----> CO2 + 2H2O What is the mass ...
Tuesday, September 8, 2009 at 4:22pm by Jessie T

chemisy
Methane (CH4) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4 + 2 O2 -> CO2 + 2 H2O What volume of carbon dioxide is produced when 3.2 L of oxygen are consumed?
Wednesday, December 5, 2012 at 9:49pm by Lena

chemistry
Methane (CH4) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4 + 2 O2 -> CO2 + 2 H2O What volume of carbon dioxide is produced when 3.2 L of oxygen are consumed?
Wednesday, December 5, 2012 at 9:50pm by Lena

You have the balanced equation: first figure the amount of moles of ammonia, oxygen, and methane in the mass used. You need 1.5 times the methane amount of Oxygen. So which is the limiting reactant? Just looking at it, I suspect it is O2, (working it in my head).
Tuesday, September 23, 2008 at 8:34pm by bobpursley

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). ...
Saturday, January 31, 2009 at 9:46am by candy

Chemistry
Calcium Carbonate and aluminum silicate are mixed together and heated. A mixture of calcium oxide, carbon dioxide, aluminum oxide and calcium silicate is produced. Write the balanced equation for this reaction. My Work: 4CaCO3+Al2(SiO3)3->CaO(s)+4CO2(g)+Al2O3+3CaSio3 I ...
Saturday, January 29, 2011 at 3:26pm by Jim

Chemistry
Calcium Carbonate and aluminum silicate are mixed together and heated. A mixture of calcium oxide, carbon dioxide, aluminum oxide and calcium silicate is produced. Write the balanced equation for this reaction. My Work: 4CaCO3+Al2(SiO3)3->CaO(s)+4CO2(g)+Al2O3+3CaSio3 I ...
Saturday, January 29, 2011 at 5:20pm by Jim

CHEMISTRY
The following reaction represents the decomposition of hydrogen peroxide: Balanced equation: 2H2O2 -> O2 + 2H2O How many moles of oxygen are produced from the decomposition of 3.4g of hydrogen peroxide? How many molecules of O2 are produced? For the second question, is the ...
Thursday, February 23, 2012 at 5:45pm by Emma

chemistry
Magnesium can be produced by reaction of magnesium oxide (MgO) with silicon (Si). The by-product of the reaction is magnesium orthosilicate (Mg2SiO4). A reactor is charged with 183.0 kg of MgO and 116.0 kg Si. Assume the reaction goes to completion. Express your answers in kg...
Saturday, March 23, 2013 at 3:32pm by schoolgirl

Chemistry
what is the balanced equation of: Combination reaction: Li2O(s)+H2O(l)-->(?) I know what a combination reaction is but I don't know how to do it when it is complex like this one.
Tuesday, April 20, 2010 at 10:32pm by Louis

Chemistry
Instead of a strip of pure Mg ribbon, you are accidentally given a strip of an aluminum-magnesium alloy. You calculate the mass of the strip as above. Would the mass of the strip be higher or lower than expected? Write the appropriate chemical equations (one equation for the ...
Monday, April 8, 2013 at 11:59am by Kate

chemistry
I looked only at #1. Seven prolems per post is six too many. Do you have any idea how long it takes to work and type in the answers? Too long. Most volunteers will not tackle one that takes that long to answer. If you will note, equation 1 reversed + equation 2 times 3/2 will ...
Monday, July 5, 2010 at 7:40pm by DrBob222

Chemistry
A compound Contains 14.5g of magnesium and 3.5 g of oxygen. what the mass of oxygen in the compound ?
Friday, October 5, 2012 at 11:01am by george

health
What is physical stress? A. A physical reaction of the mind to various triggers B. A physical reaction to the heart to various triggers C. A physical reaction of the body to various triggers D. A physical reaction of the soul to various triggers What is physical stress? A. A ...
Monday, August 6, 2012 at 1:12pm by Aya

ap chemistry
pentane is burned completely in oxygen gas. what is the balanced equation?
Sunday, January 2, 2011 at 6:59pm by erin

science
how many molecules of oxygen are produced from the balanced equation 2kclo3=2kcl+3o2
Thursday, June 13, 2013 at 4:42am by Alexis

College Chem
4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl What are 3 ways you can speed the reaction in this equation?
Monday, March 29, 2010 at 2:28pm by Kathleen

Dr Bob
Yes, those are physical properties, also. Chemical properties are those that involve a reaction. For example, a chemical property (I've forgotten the question and the element but let's pick oxygen) for oxygen might be 2H2 + O2 ==> 2H2O or 4Fe + 3O2 ==> 2Fe2O3
Wednesday, January 7, 2009 at 7:47pm by DrBob222

chem
What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8 g of magnesium metal? The percent yield of MgO(s)for this reaction is 81.7%. 2Mg(s) . CO2(g) y 2MgO(s) . C(s)
Sunday, June 1, 2008 at 8:45pm by Anonymous

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. Write a balanced ...
Sunday, October 22, 2006 at 8:21pm by Justyna

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. ...
Saturday, November 7, 2009 at 10:31am by William

Chemistry
A gaseous mixture containing 4.15 mol of hydrogen gas and 7.13 mol of oxygen gas reacts to form steam (a) Write the balanced equation for the reaction. (b) What is the limiting reactant? (c) What is the theoretical yiels of steam in moles? (d) How many moles of the excess ...
Sunday, August 22, 2010 at 3:12am by Jao

chemistry
write the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrochloric acid. Formula equation.............. net equation.............
Sunday, October 30, 2011 at 7:40pm by denis

Chemistry
Balance the photosynthesis equation: CO2+ H2O-> C6H12O6+ O2 Which i think this is Balanced: 6CO2 + 6H2O + energy-> C6H12O6 + 6O2 ? The question is this: According to the balanced equation __________ moles of carbon dioxide will react with _________moles of water to ...
Saturday, February 4, 2012 at 1:30am by Lyssa

Chemistry
Balance the photosynthesis equation: CO2+ H2O-> C6H12O6+ O2 Which i think this is Balanced: 6CO2 + 6H2O + energy-> C6H12O6 + 6O2 ? The question is this: According to the balanced equation __________ moles of carbon dioxide will react with _________moles of water to ...
Saturday, February 4, 2012 at 1:34am by Lyssa

Chemistry
There is no such thing as "a" Keq except for a particular equation; i.e., almost all Keq values are not the same. The keq is the product of the concentration of the products of a reaction divided by the product of the concentrations of the reactants, each raised to a power ...
Monday, May 17, 2010 at 12:30am by DrBob222

chem
Wwrite a balanced equation for the following chemical processes: the reaction between NaOH an dsalicyclic acid; the reaction between HCl and socium benzoate.
Wednesday, June 3, 2009 at 9:31am by Mandy

Chemistry
In a reaction chamber, 3.0mol of aluminum is mixed with 5.3mol Cl2 and reacts. The reaction is described by the following balanced chemical equation. 2Al + 3Cl2 ==> 2AlCl3 a)Identify the limiting reagent for the reaction. b)Calculate the number of moles or products formed c...
Monday, April 5, 2010 at 6:00pm by Jack

gr. 12 chemistry
That equation does not look balanced to me. Check the oxygen on both sides.
Saturday, May 24, 2008 at 4:49pm by drwls

Biochemistry
Volume of reaction flask is 2ml. There are 273 nanomoles of molecular oxygen (O2)/ml of reaction volume at 25*C. What is the amount of atomic oxygen (nanomoles) in the reaction flask?
Tuesday, March 26, 2013 at 3:04am by Chantèl

Chemistry
Volume of reaction flask is 2ml. There are 273 nanomoles of molecular oxygen (O2)/ml of reaction volume at 25*C. What is the amount of atomic oxygen (nanomoles) in the reaction flask?
Tuesday, March 26, 2013 at 2:09pm by Chantèl

AP Chemistry
My objective is to find the molar mass of a gas. Is this the correct balanced equation for magnesium ribbon reacting with hydrochloric acid to form hydrogen gas? 2Mg (s) + 2HCL (l) ----> H2 (g) + 2MgCl (aq) Also, I'm required to find the mass of the magnesium ribbon in ...
Sunday, September 23, 2007 at 1:08pm by Jake

Chemistry
This is a limiting reagent problem and it errs when it states that "0.75 g hydrogen reacts with 6.9 g oxygen" because not all of the oxygen reacts. Write the equation and balance it. 2H2 + O2 ==> 2H2O 2a. Convert 0.75 g H2 to moles. moles = grams/molar mass. 2b. Convert 6.9...
Saturday, September 11, 2010 at 5:37pm by DrBob222

Chem
Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 --> MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 7.9 g of Cl2 use the masses to two decimal places on the chart in the front of your text ...
Friday, October 18, 2013 at 10:07pm by Mary

Chemistry
A beaker of nitric acid is neutralized with calcium hydroxide. Write a balanced molecular equation and a net ionic equation for his reaction
Monday, March 4, 2013 at 4:37pm by Amee

chemistry
A mass of 2g of magnesium wire is oxidized with 150 ml of 0.5 mole/l (HCL solution) write the half rxn and the balanced equation of the overall rxn
Saturday, October 16, 2010 at 3:21pm by Anonymous

HCl - Chem
Assume you had a very magnified view of a solution of HCl that allowed you to "see" the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear and hydrogen gas would be released. Draw this out using symbols to represent the ...
Saturday, January 13, 2007 at 7:35pm by Gil

Chemistry
My question is very simple Why do metals when react with oxygen are called oxides like " magnesium oxide" whereas non metals reacting with oxygen become dioxides like "carbon dioxides" , note that the two react with oxygen which has 2 molecules
Monday, October 1, 2007 at 4:14pm by Gap

chemistry
You mean magnesium NITRIDE. Magnesium nitrate is Mg(NO3)2 and it does not produce NH3 when reacted with H2O. Convert 355 mL NH3 to moles. moles = L/22.4 = ? moles NH3. Convert moles NH3 to moles Mg3N2 using the coefficients in the balanced equation. ?moles NH3 x (1 mole Mg3N2/...
Thursday, December 1, 2011 at 2:39pm by DrBob222

chemistry
figure how many moles of Sb is one gram. Then, you need 1/2 that number of moles of Sb2O4. That is the number of moles of Sb2O4 in the first reaction. Then you need 5 times that number of moles of O2. putting it together, you figure the moles of Sb. Then you need 5/2 of that ...
Wednesday, January 25, 2012 at 12:19pm by bobpursley

science
what elements does the compound MgCL2, magnesium choride, contain? a. chloride only b. magnesium only c. magnesium and calcium d. magnesium and chlorine
Wednesday, November 9, 2011 at 8:26pm by stephanie

chemistry
in the equation mg+2hcl-->mgcl2+h2, what mass of the hcl is consumed by the reaction of 2.50 mol of magnesium
Thursday, February 23, 2012 at 8:31pm by Esla

Chemistry Equation
In a lab expirement you add copper(II)nitrate to pure zinc. Write a balanced equation for this expirement and predict if a reaction will occur. I THINK Bob Pursley answered this question a day or so ago. Zinc is higher in the activity series than copper; therefore, Zn will ...
Saturday, January 6, 2007 at 1:23pm by chrissy

college Chemistry
The reaction is Na2CO3 -> 2 Na+ + CO3(2-) The balanced reaction equation tells you that each mole of sodium cardonate makes 2 moles of Na+. So, double the 0.318
Saturday, January 24, 2009 at 12:35am by drwls

Chemistry 104
The reaction of hydrogen peroxide, sulfuric acid and lead results in the production of lead sulfate in an acidic aqueous solution. Write the balanced equation for this reaction.
Friday, May 3, 2013 at 1:40pm by Sophie

chemistry
Classify the following properties of ozones as physical or chemical: 1.bluish color 2.pungent odor 3.reactive towards oxygen 4.decomposes to oxygen on exposure to ultraviolet light 5.it is a gas Is this correct? 1.chemical 2.physical 3.chemical 4.chemical 5.phsical
Wednesday, February 20, 2008 at 6:36pm by lizzie

Chemistry
A sample of magnesium metal reacts with hydrochloric acid solution to produce magnsesium chloride solution and hydrogen gas. a)write a balanced chemical equation for this reaction and include phase designations. The phase designations would be s for solid, aq for aqueous, and ...
Thursday, October 7, 2010 at 6:46pm by Anonymous

Chemistry
A sample of magnesium metal reacts with hydrochloric acid solution to produce magnsesium chloride solution and hydrogen gas. a)write a balanced chemical equation for this reaction and include phase designations. The phase designations would be s for solid, aq for aqueous, and ...
Thursday, October 7, 2010 at 8:07pm by Anonymous

Chemistry
1. Write the equation and balance it. 2. Convert 30 g oxygen to moles. moles = grams/molar mass 3. Using the coefficients in the balanced equation, convert moles oxygen to moles water. 4. Convert moles H2O to grams. g = moles x molar mass. Post your work if you get stuck.
Thursday, August 5, 2010 at 5:23pm by DrBob222

Science!
The first reaction is already balanced, if you eliminate the O2 on the left side. Your second reaction does not have Mn on both sides, and cannot be balanced. In your third reacation, I never heard of dihydrogen monoxide. There is an unstable free radical C2O, but that cannot ...
Monday, September 28, 2009 at 6:59am by drwls

Chemistry
25cm^3 of a gas containing only nitrogen and oxygen decomposed to form 25cm^3 of nitrogen and 50cm^3 of oxygen. All the volumes were measured at the same temperature and pressure. Write an equation for the reaction.
Sunday, October 13, 2013 at 9:25pm by Cindy

Chemistry
A sample of magnesium with a mass of 1.00 g is burned in oxygen to produce an oxide with a mass of 1.66 g. What is the empirical formula of the magnesium oxide produced? I know the answer is MgO. What are the steps to get that answer?
Sunday, October 10, 2010 at 10:36pm by Doris

Physical Science
In a certain reaction 1.5 mol of CO and 1.5 mol of H2O are placed in a 2,0 dm3 sealed vessel. Equilibrium is established at a temperature of 1 000 C. The equilibrium reaction equation is CO(g) + H2O(g) = CO2(g) + H2(g) The value of Kc for this reaction is 0,63. Calculate the ...
Tuesday, March 22, 2011 at 6:00am by wezile

College chemistry
This is an example of a combustion reaction involving a hydrocarbon (in this case propane) reacting with oxygen. The products of such reactions are almost always water and carbon dioxide. C3H8(g) + O2(g) → H2O + CO2 First balance the number of Carbons on both sides. ...
Friday, May 4, 2012 at 1:49am by Phil

Chemistry
It says to write the balanced equation for the complete combustion of cyclobutanol in Oxygen. I'm not even sure what the product is supposed to look like so how can I balance the equation? Please help. C4H8O + O2 ---> C4H8O
Sunday, July 11, 2010 at 2:18pm by Casey

Stoichiometry problem
Nitroglycerin decomposes explosively to produce carbon dioxide, water, nitrogen, and oxygen. What volumes of nitrogen and oxygen are produced if 4.3 L of carbon dioxide is produced? The balanced equation is 4C3H5(NO3)3 „± 12CO2 + 10H20 + 02 + 6N2
Saturday, September 9, 2006 at 10:04pm by Anonymous

Chemistry
Color, texture, mass are all physical changes. Changing to MgO is a chemical change and you can write an equation for it. Mg + O2 ==> MgO You need to balance it. You can see from the equation that the amount it changes in mass is a function of how much Mg you started with. ...
Thursday, January 29, 2009 at 4:45pm by DrBob222

chemistry
A 31.5 ml aliquot of H2SO4 of an unknown concentration was titration with 0.0134 M NaOH. write the balanced chemical reaction with the correct states of matter.
Thursday, April 22, 2010 at 9:58pm by txqt320

chemistry
A 31.5 ml aliquot of H2SO4 of an unknown concentration was titration with 0.0134 M NaOH. write the balanced chemical reaction with the correct states of matter.
Friday, April 23, 2010 at 11:05am by help please!

chemistry
No. An equation is balanced only if mass is balanced AND charge is balanced. EQuation (2) balances both. Check the charge changes to verify.
Monday, September 17, 2007 at 7:02pm by bobpursley

chemistry
50cm/3 ofsulphur(iv) oxide were produced at stp when some quality of powdered sulpur were burnt in excess oxygen. (1) which equation is suitable.(2) what volume of oxygen was used up during the reaction.(3) which of the gas law is applicable. State the law.
Friday, February 17, 2012 at 3:02am by Promise

chemistry
Please help =) 59. Ethanol, C2H5OH, is responsible for the effects of intoxication felt after drinking alcoholic beverages. When ethanol burns in oxygen, carbon dioxide and water produced. (a) Write a balanced equation for the reaction. [[Think I did this right] Need help with...
Friday, October 10, 2008 at 11:19pm by shadow55

Analytical Chemistry
What is the balanced equation for oxidation of iodide ion by oxygen (O2) that occurs which produces iodine.
Monday, January 30, 2012 at 6:04pm by kalynn

chemistry
Phosphoric acid reacts with magnesium carbonate to produce? When you predict the products and write a balanced equation the coefficient of phosphoric acid is a.1 b.2 c.3 d.6 e.4
Sunday, September 5, 2010 at 11:09am by Mely

chemistry
What is the sum of the coefficients (including “1”) of the balanced equation? __CaCO3 + __NaF __ CaF2 + __Na2CO3 4 5 6 7 8 If you start with 20.0 grams CaCO3, how many moles of CaCO3 do you have? 20.0 2.00 .200 .0200 .0386 If you start with .500 moles of NaF, how many moles of...
Tuesday, February 12, 2008 at 10:12am by cal

Chemistry
A 3.214-g sample of magnesium reacts with 8.416g of bromine. The only product is magnesium bromide. If 1.934g of magnesium is left unreacted, how much magnesium bromide is formed? -Sorry, I've completely forgot how to do this..please help
Friday, January 28, 2011 at 12:25am by LHale

chemistry
How do I write the skeleton equation representing the heating o f magnesium carbonate to produce solid magnesium oxide and carbon dioxide gas?
Monday, March 15, 2010 at 8:04pm by Brittany

chemistry
1.write the balanced equation 2.find the number of moles of N2O 3.find the molar ratio 4.if the ratio is 1:1 than the number of moles for N2O and oxygen will of the same value 5.find the mass using n=m/MM 6. rearrage the equation to get m=n*MM and you will get the mass of ...
Friday, March 26, 2010 at 12:39am by Abraham

chemistry
magnesium has 3 isotopes. Magnesium-24 has a percent abundance of 78.99%. Magnesium-26 has a percent of 11.01%. what is the percent abundance of magnesium-25? assume that there are no other magnesium isotopes. how do i do this please help
Wednesday, December 8, 2010 at 6:22pm by monique n

science
Based on the reactivity series, decide whether the following reaction will occur. If you think there will be no reaction, write down why you think this. If you think a reaction will happen, write down why you think it will happen, and the word equation to go with it. a) iron ...
Monday, June 27, 2011 at 10:32am by ishaan

Chemistry
My teacher hasn't really talked about types of reactions; he's just given us a list of net ionic equations involving water and different elements including Lithium, Sodium, Calcium, Magnesium, Lanthanum, and Potassium to memorize. However, his test questions don't involve the ...
Wednesday, January 7, 2009 at 10:10pm by GP

chem
At hihg temperatures Sodium chlorate decomposes to form Sodium Chloride and Oxygen gas. A 0.8765 gram sample of sodium chlorate was heated until the reaction ended when Oxygen gas production was ceased. The Oxygen gas collected over water occupied 57.2 ml at temperature of 295...
Sunday, March 16, 2008 at 4:00pm by Anonymous

College Chemistry
Make sure the equation is balanced. Is this for "so-called" standard conditions? If so, go the tables in your text and look up delta Hfo values. delta H rxn = (delta H products) - (delta H reactants). That will give you the delta H for the reaction for 64 g oxygen. Set up a ...
Tuesday, March 30, 2010 at 2:38pm by DrBob222

chemistry
This is a combustion reaction of a hydrocarbon, so the product should be CO2 and H2O, which is how you correctly solved the problem, but you say the product is CO and water. If this is the case, the coefficients in the balanced chemical reaction would be 2,7,6,8. Making the ...
Thursday, January 22, 2009 at 8:32pm by Natalie

Chemistry - 1st Yr College Level
The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressures of oxygen: 0.20 atm of oxygen at one point and 0.0010 atm of oxygen at the other. The ...
Tuesday, December 11, 2007 at 10:31pm by Anne

chem
PLEEEZE help name the type of reaction K + MgBr -> Not enough information is provided. And not magnesium bromide is MgBr2. Is this a solution phase or exactly how is the K metal added to the MgBr2? As DrBob has indicated, not all of the information has been provided. You ...
Monday, February 19, 2007 at 2:11pm by key

Stoichiometry
1. Iron reacts with oxygen according to the following equation: Fe + O2→ Fe2O3 a. Balance the equation. b. Assuming you start with 15.0 g of iron, how many dm3 of oxygen are required to react? c. How many molecules of oxygen is this?
Tuesday, February 22, 2011 at 6:56pm by Ashley

chemistry
Could you explain this problem to me? What is the sum of the coefficients (including “1”) of the balanced equation? __CaCO3 + __NaF __ CaF2 + __Na2CO3 a.
Monday, January 29, 2007 at 8:14pm by key

Chemistry
In an experiment 2.750 g of magnesium is reacted with 2.571 g of oxygen gas according to the equation: Mg + O2 ==> MgO. What mass of the other reactant is in exess? see other post.
Sunday, June 3, 2007 at 4:48pm by Ashley

Gen Chem
Ethane, C2H6(g) can be made by reaction of hydrogen gas with acetylene, C2H2(g). the standard enthalpies of formation of ethane and acetylene are -84.68 and +226.73 kJ mol-1, respectively. what is the reaction enthalpy for the production of one mole of ethane? Write the ...
Saturday, October 20, 2012 at 9:39pm by Sam

chemistry
Break down the equation into reduction and oxidation half equation. oxidation reaction is I- --> IO3- balance the equation starting with oxygen by adding water, then followed by addition of H+ ions to balance H atoms, and then finally the electrons to balance the charges. ...
Monday, June 17, 2013 at 4:56pm by bonjo

chemistry 1
if 20.2g of zn react with and equal amount of magnesium chloride to form magnesium and zinc chloride[zn+mgcl2> mg+zncl2] a.what is the limiting reactant? b. how much magnesium will be produced? Here is the way to solve most of these stoichiometry problems. Step 1. Write the...
Friday, May 11, 2007 at 1:52pm by sam

chem
Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3N2. Magnesium nitride reacts with water to give ammonia. Mg3N2(s) + 6 H2O(l) → 3 Mg(OH)2(s) + 2 NH3(g) What volume of ammonia gas at 24°C and 753 mmHg will be produced from 4.46 g of ...
Sunday, March 6, 2011 at 5:20pm by D

2C8H18(g)+25O2(g)+16CO2(g)+18H2O(g) 0.290mol of octane is allowed to react with 0.600mol of oxygen.The limiting reactant is Oxygen. How many moles of water are produced in this reaction? After the reaction, how much octane is left?
Monday, October 5, 2009 at 10:19pm by Rose

Chemistry
Given the balanced equation, how many milliliters of oxygen gas at STP are released from the decomposition of 5.05 g of calcium chlorate?
Sunday, December 5, 2010 at 10:34pm by Kalen

chemistry
what is the coefficient on oxygen in the balanced equation for the following hydrocarbon combustion reacton C7H14 + O2 + CO2 + H2o
Tuesday, October 25, 2011 at 8:58am by Doss

Chemistry
Write a balanced nuclear equation for the positron emission of each of the following nuclei: a) arsenic-74 b) oxygen-15
Friday, April 20, 2012 at 10:04pm by Shannon

Physics
2. How many oxygen atoms are indicated on the right side of this balanced chemical equation? 4 Cr(s) + 3 O2( g)h2 Cr2O3( g)
Wednesday, May 29, 2013 at 11:10pm by jamya

Chemistry
X(g) + 2 Y(g) + 2 Z(g) -->3 M(g) + 2 N(g) I've already found the orders for the following to be: X is 2nd, Y is 1st, Z is 0 and overall of course is 3. But I am confused about the below question. I initially guess that No it doens't occur in one step..but the reasons why I ...
Thursday, April 1, 2010 at 6:19pm by Val

CHEMISTRY
In a study of the reaction of magnesium with hydrochloric acid, two experiments were carried out. Each uses 1 g of magnesium ribbon, and 50 mL of hydrochloric acid was added to each reaction flask. One of the hydrochloric acid solutions added was more concentrated than the ...
Sunday, November 17, 2013 at 3:47pm by Anonymous

Chemistry
Please Help me with my chemistry Review I have a test tommorow? Please help me with my review my test average is low and i need at least a b to pass the class for the six weeks I am freaking out!!!! I care more about showing work i dont want answers I just want help on how to ...
Thursday, February 28, 2008 at 8:05pm by anon

Chemistry - Stoichiometry
16.2g of magnesium reacts exactly with 25.3g of fluorine to produce magnesium fluoride, the only product. How many grams of magnesium fluoride could be produced from the reaction of 10.5g of magnesium with excess fluorine. This is simple if you use ratios... You know that 16.2...
Thursday, August 25, 2005 at 2:49pm by Kevin

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