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August 31, 2016

Search: Magnesium reacts with oxygen to form magnesium oxide. If 0.81 grams of magnesium oxide are formed, how many grams of oxygen reacted?

Number of results: 29,631

Science
Chromium is produced by reacting its oxide with aluminum. If 76 g of Cr2O3 and 27 g of Al completely react to form 51 g of Al2O3, how many grams of Cr are formed?
November 18, 2009 by Nathan

Chemistry
if 30.0 grams of molten iron (III) oxide reacts with 275 grams of aluminum, what is the mass of the iron produced.
December 5, 2010 by Kalen

chemistry
how many grams of Fe2O3 are formed when 16.7g of Fe reacts completely with oxygen. 4Fe +3O2 --> 2Fe2O3 how do i do this problem..thanks:)
June 8, 2008 by Miley

chem
the element nitrogen and magnesium react to give magnesium nitride according to the balanced equation N2 + 3Mg = Mg3N2 suppose you have 0.3616 mol of n2 1-how many moles of mg are needed for complete reaction? 2-what mass of Mg3N2, in grams can be produced? ( the molar mass of...
September 27, 2011 by burrprett

chemistry
Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of ammonia is consumed by the reaction of 4.5g of oxygen gas? Round your answer to significant digits.
September 27, 2011 by Anonymous

Chemistry
Magnesium nitride can be produced by passing nitrogen gas over magnesium metal. 3Mg+N2 --> Mg3N2 IF 28.8g of Mg are mixed with 21g of N2 and allowed to react, which is the limiting reagent?
July 24, 2008 by Amber

stoichiometry
if 5.00g magnesium is combined with 10.0 g of chlorine, show by calculation which substance is the limiting reactant and calculate the theoretical yield of magnesium chloride for the reaction. Someone PLEASE HELP ME!!!!
September 11, 2009 by Laura

Chemistry
Joseph Priestly discovered oxygen when he heated a red powder. This red powder had been prepared by heating mercury in air. a) name th red powder formed when this element is heated in air b) write a word equation to show what happens to this red powder when it is strongly ...
December 3, 2006 by Jessica

chemistry
A 71.1 g sample of an unknown compound contains 10.1 g of hydrogen. What is the percent by mass of hydrogen in the compound? When mercury oxide is heated, it decomposes into mercury and oxygen. If 32.8 g of mercury oxide decomposes, producing 3.0 g oxygen, what is the percent ...
September 17, 2013 by taja

chemistry pls help me asap
2.08g of metal Y react with 0.96g of oxygen to form a metal oxide.The empirical formula of the metal oxide is Y2O3.What is the relative atomic mass of metal Y.
May 15, 2014 by mandy

grade 11 chemistry
12.0 g of carbon reacts with 32.0 g of oxygen to form 44.0 g of Co2. if we react 20.0 g of oxygen with 20.0 g of carbon,how many grams of carbon will be used up?..... i have no clue where to start... can u just tell me the steps to solve similar problems like this
September 22, 2010 by priya

Chemistry
Sulfur dioxide (SO2) reacts with oxygen gas to make sulfur trioxide (SO3). How many grams of oxygen are used to produce 8.11 grams of sulfur trioxide?
April 9, 2016 by Petey

chemistry
given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
November 9, 2010 by Musawar

chemistry
given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
November 9, 2010 by Musawar

chemistry
given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
November 9, 2010 by Musawar

Chemistry
For the reaction 2Zn plus O2>> 2ZnO, how many grams of zinc oxide can be produced from 100.g each of zinc and oxygen?
March 18, 2008 by Whittney

Chemistry
5. How many grams of iron oxide can be produced from 2.50 g of oxygen reacting with iron, according to the following equation? 2 Fe (s) + 3 O2 (g) -->2 Fe2O3(s)
February 16, 2016 by Hannah

Chemistry
5. How many grams of iron oxide can be produced from 2.50 g of oxygen reacting with iron, according to the following equation? 2 Fe (s) + 3 O2 (g) -->2 Fe2O3(s)
February 16, 2016 by Hannah

chemistry
in a compound of nitrogen and oxygen, 14.0 grams of nitrogen combines with 32.0 grams of oxygen. How much oxygen is required to combine with a sample of 10.5 grams of nitrogen in producing same compound? How do you do the math?
June 6, 2011 by Don

chemistry
Element Symbol Atomic Mass --------------------------------------- Bromine Br 79.904 Calcium Ca 40.078 Carbon C 12.011 Chlorine Cl 35.4527 Cobalt Co 58.93320 Copper Cu 63.546 Flourine F 18.9984032 Hydrogen H 1.00794 Iodine I 126.904 Iron Fe 55.847 Lead Pb 207.2 Magnesium Mg 24...
April 15, 2008 by Chris

Chemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?
September 27, 2009 by Telicia

Chemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?
September 29, 2009 by Telicia

Chemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?
June 17, 2012 by B

Chemestry
Iron metal reacts with oxygen gas to form rust, iron (III) oxide. Which of the following correctly shows the balanced equation for this reaction?
December 2, 2015 by Bill

chemistry
1)The reaction of methane and oxygen yields carbon dioxide gas and water. The unbalanced reaction is as follows: CH4(g) + O2(g)CO2(g) + H2O(g) A. If 0.718 grams of methane are reacted, how many grams of water vapor are produced? B. If 1.621 grams CO2 are released, how many ...
January 7, 2010 by eng

Chemistry
In trial one the mass of silver oxide is .5g. The mass of silver metal product is .431 grams. In trial two the silver oxide=.498 and silver metal=.388. How do you use this information and the conservation of mass to calculate the mass of oxygen that combined with the silver?
September 19, 2010 by mike

Chemistry
Is the reaction of 8 grams of natural gas and 38 grams of oxygen gas to form 17 grams of carbon dioxide in 19 grams of water consistent with the law of conservation of mass?
February 6, 2015 by Sparky

chem
how many grams of a precipitate will form when you mix 45 ml of a 3.5M silver nitrate solution with 45 ml of a 5.4 M magnesium chloride solution i sorted the problem but have no clue how to start
June 7, 2009 by lyne

Chemistry (Check)
Nitrogen combines with oxygen to form a variety of compounds. One of these compounds is called nitrous oxide or "laughing gas." What is the formula of nitrous oxide if this compound is 63.65% N and 36.35%O by weight? I got N2O
October 13, 2015 by Anonymous

chemistry
in trial one the mass of silver oxide is .5g. The mass of silver metal product is .431 grams. In trial two the silver oxide=.498 and silver metal=.388. Use the conservation of mass to calculate the mass of oxygen that combined with the silver
September 19, 2010 by kelly

chemistry
I am unsure about balancing equation I would like for someone to let me know if I am working this out correctly? I have to write a balanced equation for the reaction when solid magnesium is added to a solution of lead(ii)nitrate, solid lead forms and the magnesium disappears ...
April 14, 2014 by jazz

science
what is the largest layer of earth's surface , composed mostly of silicon,oxygen,magnesium,and iron
March 29, 2009 by sara

CHEM
Could you please tell me if these are right? Write an equation for the following reactions. Write the correct formulas of the reactants and products. Then correctly balance each equation. A.) Potassium and oxygen gas react to form potassium oxide. I got K+O2=KO2 B.) Sodium and...
October 15, 2010 by Chris

Chemistry
what volume of oxygen at 423.0K and a pressure of 127.4kPa will be produced by the decomposition of 129.7g barium peroxide to form barium oxide and oxygen gas? Thank you
November 27, 2015 by Adam

chemistry
when the supply of oxygen is limited, iron metal reacts with oxygen to produce a mixture of FeO and Fe203.in a certain experiment, 20.00g of iron metal was reacted with 11.20g of oxygen gas. After the experiment the iron was totally consumed and 3.56g oxygen gas remained. ...
May 4, 2016 by Chansa

chemistry
After writing a balanced equation for the reaction between magnesium and hydrochloric acid, calculate the mass of magnesium needed to produce 90ml of hydrogen gas @ STP conditions.
December 9, 2010 by Tiffany

General Chemistry
The burning of the magnesium becomes uncontrolled (its burns brightly). Oops! How will this procedural error affect the reported mole ratio of magnesium to oxygen in the analysis? Explain. Mass of crucible and lid 23.96g Mass of Sample (Mg) .1018g Heating the sample in Air (if...
September 26, 2010 by autum

chemistry
This has to do with law of conservation of mass I believe but it stumps me. 50g or iron reacts with 21g of oxygen to form how many gram of iron oxide? Is the answer 71g or 29g
September 3, 2011 by ben

chemistry
Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calculate the mass of calcium oxide formed when 2.0 grams of CaCO3 is decomposed.
March 5, 2016 by Unknown

Chemistry
(1)Aluminum reacts with oxygen to produce aluminum oxide according to the following reaction: 4Al(s) + 3O2(g) → 2Al2O3(s) Calculate the moles of Al2O3 produced when the reaction is performed with 31.06 g of each reactant. (2)Nitrogen dioxide reacts with water to produce ...
March 6, 2013 by WCU cats

Chemistry
If 120. grams of KClO3 reacts, how many grams of oxygen are produced?
November 23, 2014 by Anonymous

Chem - oxides
When an element is burnt in excess oxygen, is the oxide formed always: 1. a crystalline solid 2. greater in mass than the element 3. soluble in water 4. white in color alright, i know that most oxides are not soluble in water other than group 1 elements and calcium and barium...
September 23, 2009 by Monica

Chemistry
which formula is correctly paired with its name? 1.MgCl2 magnesium dichloride 2.N2O5 dinotrogen pentoxide 3.H20 hydrogen oxide 4.CuCl2, copper (III) chloride please help! i think its1 or 4
November 29, 2010 by Anonymous

Chemistry
When burning a Magnesium Ribbon, would the color (the white dust) that it changed to be a chemical change? Or how about the spark it makes (I am just in basic chemistry, so that spark might be counted as a chemical change)? So far I got from the help for Drbob: 1.Reacts with ...
January 29, 2009 by Chopsticks

chemistry
List the following bonds in order of increasing ionic character. (Enter your answer in the format H-O for the hydrogen-to-oxygen bond in H2O. Use the appropriate <, =, or > symbol to separate substances in the list.) the barium-to-fluorine bond in Ba-F the magnesium-to-...
November 26, 2012 by Shawn

chemistry
A sample of magnesium (13 g) when heated in air produces 22 g of product. What percent (by weight) of magnesium is present in the product? Answer in units of %.
September 9, 2010 by z

chemistry
average atomic mass of magnesium is 24.31 amu. this magnesium is composed of 79 mole % of ^24 Mg and remaining 21mole % of ^25 Mg. calculate mole % of ^26Mg.
June 17, 2014 by shish

Chem.
Nitrogen oxide (NO) has been found to be a key component in the many biological processes. It also can react with oxygen to give the brown gas NO2. When one mole of NO reacts with oxygen, 57.0 kJ of heat is evolved. a) Write the thermochemical equation for the reaction between...
January 29, 2007 by Christopher

chemistry
What is the mass of hydrogen produced from the reaction of 2.31 grams of HCl with magnesium?
February 24, 2008 by Barb

chemisty
how many grams of magnesium sulfate are required to make 575 ml of a 1.65% (m/v) solution
March 7, 2011 by jess

chemistry
How many grams of magnesium iodide are needed to make 125 ml of a 5M solution
March 31, 2011 by John

chemistry
how many grams of magnesium are required to react with 2.0 moles of hydrochloric acid?
February 2, 2013 by Z

chemistry
what is the concentration of a 250 ml solution that contains 44 grams of magnesium fluoride
August 21, 2013 by Emily

chemistry
How many grams of magnesium are required to produce a total of 4.05g of hydrogen
April 2, 2014 by veronica

Chemistry
How many grams of MgCl2 would be required to make 440 g of magnesium ?
April 26, 2016 by Ben

Chemistry
Part 1 : a.) How many grams of Hydrogen will be contained in a 100.000 g sample of magnesium hydroxide.? c.) How many grams of nitrogen will be contained in a 120.0 g sample of calcium cyanide? ________________________________________ Part 3: d.) How many grams of nickel will ...
January 11, 2016 by Amber Deana B.

Chemistry
Draw a Bohr diagram of the protons and electrons in each of the following. a) an atom of magnesium Do I draw this with 19 atoms surrounding the shell of Magnesium around?
July 8, 2010 by Derrick

chemistry
When magnesium is burnt completely in air the totol mass of the product was found to be grater than the original mass of the piece of magnesium.explain
June 14, 2011 by Ali

Chemistry
Predict whether the following solutions are acidic basic or neutral. Provide explanations to support your predictions a) ammonium phosphate b) Ammonium sulfate c) Magnesium oxide
June 14, 2010 by Adeola

Chemistry
A .1360 g sample of a mixture of magnesium and calcium carbonates when treated with HCL evolves 32.25 cm cubed of carbon dioxed measured dry at STP. Calculate the percent of magnesium carbonate in the mixutre.
October 4, 2011 by Rachel

Chemistry
Iron(III) oxide is formed when iron combines with oxygen in the air. What is the mole ration of Fe used and the mole of Iron(iii) oxide produced? 4Fe(s) + 3O2(g) > 2Fe2O3(s) a - 3:2 b - 4:3 c - 4:2 d - 3:4 Can someone help?
May 14, 2012 by Kaelan

science
largest layer of earth's surface, composed mostly of silicon, oxygen,magnesium,and iron is called____________
March 28, 2009 by sara

Emma Rae
2Mg + O2--->2MgO If more oxygen is added, the amount of magnesium a.will increase. b.will decrease c.will not change. and why? Thanks for your help
July 3, 2011 by Anonymous

Chemistry (stoichiometry)
22 moles of benzene are completely reacted with molecular oxygen, how many moles of carbon dioxide will be produced? and if 150 grams of water were produced, how many moles of oxygen must have reacted
March 1, 2016 by Alex

chemistry
Duralin is an alloy of aluminium containing 4.5% manganese, 3.5% copper, and 0.45% magnesium. How much magnesium is present in a 90 g sample of this alloy? Answer in units of mol
November 6, 2011 by lynn

Chemistry
Duralin is an alloy of aluminium containing 4.5% manganese, 3.5% copper, and 0.45% magnesium. How much magnesium is present in a 32 g sample of this alloy? Answer in units of mol
October 9, 2013 by Susan

chemistry
find mass of magnesium nitride produced in reaction of 5.0of magnesium with 10.0gof nitrogen. the reaction was carried out in a closed container
March 10, 2015 by Allison

chemistry
Calculate the solubility (in grams per 100 mL of solution) of magnesium hydroxide in a solution buffered at pH = 12. I can get the answer in grams per mole, but i am having difficulty changing it to g/100ml.
November 1, 2010 by moe

science
when a 424-g of iron powder is burned in an oxygen atmosphere, 0.606-g of a reddish brown oxide is obtained. Determine the empirical formula of the oxide.
July 23, 2012 by kit

Chemistry
When 6.25grams of pure iron are allowed to react with oxygen, a black oxide forms. If the products weighs 8.15g, what is empirical formula of the oxide?
October 22, 2014 by Gina

chemistry
Can someone help me finish this equation, please? We're adding Magnesium to Copper sulfate and getting Copper. This is what I have as of now: CuSO4+Mg===>Cu I'm guessing it is a single replacement, so should I add MgSO4 to the right? But then my lab procedure says that we ...
March 8, 2007 by Lydia

Chemistry
Please check to see if I got these right and specifically for #2, I am not sure if I have this balanced correctly. Write the complete balanced equations for the following: 1) Potassium metal reacts with oxygen gas to form solid potassium oxide. My answer: 4K(s)+O2(g)=4KO2(s) 2...
August 4, 2010 by Ashley

chemistry
The molar mass of magnesium carbonate, MgCO3, is 84 g/mole. How many moles are in 12.60 g of magnesium carbonate?
December 5, 2009 by brianna

Chemistry
4Fe + 3O2 = 2Fe2O3 So in math book it say " You can interpret this equation in terms of representative particles by saying that four atoms of iron react with three molecules of oxygen to produce two formula unit of iron(iii) oxide" Why it say that there are 4 atoms of iron / 3...
February 24, 2013 by Shadow

Chemistry
Zinc sulfide and oxygen gas react to form oxide and sulfur dioxide. Determine the amount of ZnO that should be produced in a reaction between 46.5 g of ZnS and 13.3 g of oxygen. What is the mass of the xs reactant? Please show work
February 15, 2012 by Christian

chemistry
if 20g of magnesium react with excess hcl how many grams og mgcl2 will be produced
February 25, 2010 by sean

college
how to figure out how many grams of magnesium are required to produce 2.154grams of product?
February 28, 2010 by Donna

chemistry
How many grams of H2(g)can theoretically be produced from a 5-g sample of magnesium metal and excess HC1(aq)?
November 11, 2010 by Brit

Chemistry
How many grams of H2(g) can theoretically be produced from a 5-g sample of magnesium metal and excess HCl(aq)?
April 2, 2012 by Polly

chemistry proofread
write the chemical equations for the following sentences a) Aluminum reacts with oxygen to produce aluminum oxide I put Al + O2 ----------> 2Al2O3 b) Phosphoric acid, H3PO4, is produced through the reaction between tetraphosphorous decoxide and water I put P4O10 + 6H2O...
March 26, 2008 by john

Ap Chemistry
Posted by Jake on Sunday, September 23, 2007 at 1:08pm. My objective is to find the molar volume 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...
September 25, 2007 by Jake

Chemistry
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 required to combine with 1.00 g nitrogen to form an oxide.i m a student
August 3, 2015 by Rao

college chemistry
If the equilibrium constant (Keq) equals 9.12x1012 for the following reaction between strontium and magnesium: Sr(s) + Mg2+(aq)<==> Sr2+(aq) + Mg(s) Calculate Eo for a strontium=magnesium battery.
April 13, 2011 by alex

college chemistry
If the equilibrium constant (Keq) equals 9.12x1012 for the following reaction between strontium and magnesium: Sr(s) + Mg2+(aq)<==> Sr2+(aq) + Mg(s) Calculate Eo for a strontium=magnesium battery.
April 13, 2011 by alex

Chemistry
If the percentage of arsenic is 76% and the percentage of oxygen is 24% how do I calculate the chemical composition of the oxide of the arsenic? Thanks Pretend you have 100 grams of the stuff. Then 76 grams of As is how many moles? 76/74.9 =1.01 moles. How many moles is 24 ...
February 25, 2007 by Laura

Chemistry
112.00g of nitrogen gas is reacted with an excess or abundant amount of oxygen gas. The single product, a gas, is determined to have a mass of 431.92 g. Additional experiments showed that the product consisted of 2.0 moles. a) how many grams of oxygen reacted? b) what percent ...
December 2, 2015 by Maria

chemistry
How many grams of carbon dioxide will form if 4.4 g of propane reacts with 16.0 g of oxygen producing 7.2 g of water?
May 20, 2013 by Ron

Chemistry
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 required to combine with 1.00 g nitrogen to form an oxide.
August 3, 2015 by Rao

chemistry
How many grams of mercury are formed from 47.0 of HgO? How many grams of oxygen are formed from 47.0 of HgO? How many grams of HgO would you need to obtain 34.1 of O2?
February 7, 2012 by ASh

Physical Science
11. Chromium is produced by reacting its oxide with aluminum. If 76g of Cr2O3 and 27g of Al completely react to form 51g of Al2O3, how many grams of Cr are formed?
March 28, 2010 by Zak

chem
Ammonia reacts with oxygen to form nitrogen dioxide and water according to the following equation: 4NH3(g) + 7O2(g) 4NO2(g) + 6H2O(g) You react ammonia and oxygen, and at the end of the experiment you find that you produced 27.0 g of water, and have 8.52 g of ammonia left ...
November 2, 2009 by mich

chemistry
What is the maximum number of grams of PH3 that can be formed when 6.2 grams of phosphorus reacts with 4.0 grams of hydrogen to form PH3? P4+6H2-->4PH3. how do i do this question
June 10, 2008 by Miley

Chemisty
6.52 g of oxygen gas reacts with some amount of iron, and 11.50 g of Fe2O3 are formed. What was the amount of iron that reacted with the oxygen?
February 24, 2014 by Tator

chemistry
For the reaction between nitrogen and oxygen to form nitric oxide, beginning with 0.067 mol of N2, N2(g) + O2(g)= 2 NO(g) a. how many moles of O2 are required to completely consume the N2? b. how many moles of NO are obtained when the N2 is completely reacted?
February 13, 2012 by krystal

Chem
What is the molarity (M) of an HCl solution, 150 ml of which when treated with excess magnesium liberates 3.5 l of H2 gas measured at STP? I know molarity is Moles, volume, but how does magnesium come into play?
April 17, 2013 by Johnie HELPPPPP

Chemistry
If 152 grams of ethane (C2H6) are reacted with 231 grams of oxygen gas, what is the excess reactant? 2C2H6 + 7O2(g) → 4CO2(g) + 6H2O(g)
August 8, 2016 by Rohit

chemistry
how many grams of magnesium are required to liberate 250 cm3 of Hydrogen gas from HCL
April 17, 2012 by Allen

CHEM
How many grams of magnesium chloride are needed to prepare 100ml of a 0.325 M MgCl2 solution?
February 7, 2013 by Lisa

Chemistry
Calculate the solubility (in grams per 1.0010^2 mL of solution) of magnesium hydroxide in pure water.
March 28, 2016 by Salma

pysics
if 15 grams of iron combines with 6.5 grams of oxygen, how much rust is formed
October 16, 2012 by dave

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