Number of results: 66,511
N2 + 3H2 --> 2NH3 how many grams of hydrogen are needed to react with 50 grams of nitrogen? Three moles of H2 per one mole of N2. How many moles of N2 is 50 grams? 1.79 moles is 50 grams. You do these problems in steps. Step 1. Write a balanced chemical equation. You have ...
Thursday, June 22, 2006 at 1:36pm by Hawk
I'm stuck and am hoping you can help. Here is the problem: You react 7.92 grams of silver nitrate, AgNO3(aq), with an excess of sodium chloride, NaCl(aq). How many grams of silver chloride, AgCl(s), will precipitate from the solution? Any help would be appreciated. Most of ...
Saturday, September 9, 2006 at 10:04pm by Rachel
how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2. Convert what you have...
Sunday, September 24, 2006 at 9:06pm by brian
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
I was sick for 2 days, and that's really not good in any chemistry class, let alone mine, which is an advanced one. I don't know what I was thinking when I tried to be smart, but I really need help. It's pretty basic, I think, so anyone..? Also, I really have tried these......
Wednesday, December 13, 2006 at 9:44pm by Trish
Need to write a balanced chemical equation for the reaction between hydrogen selenide and tin. I know that the hydrogen selenide decomposes producing solid tin selenide and hydrogen gas but how would I balance that in the equation. Any help gratefully recieved. I can write and...
Sunday, January 7, 2007 at 1:47pm by Mac
write a balanced chemical equation for the reaction of aluminium selenide with water (to include physical states of reactants and products)to include brief decription of the strategy used and the sequence of partially balanced equations needed to reach final fully balaced ...
Tuesday, January 30, 2007 at 5:53am by rikki
the oxide formed when selenium burns in air dissolves in water to give a solution of selenious acid,H2SeO3.the solution conducts electricity and turns blue litmus paper identify the positively charged ion present in an aqueous solution of the acid and then using the answer ...
Friday, February 2, 2007 at 8:23am by hanny dunny
got another question for DrBob please? The composition of hydrogen selenide can be determined by heating tin (Sn) in a measured volume of gas. The hydrogen selenide is decomposed, producing solid tin selenide (SnSe) and hydrogen gas. If the temperature and pressure are ...
Saturday, February 3, 2007 at 2:48pm by bertie
Can anyone please help? ive been asked to write a balanced chemical equation for the breakdown of seleniuos acid H2SeO3 in water and to decuce the charge on the other ion that is formed. Thanks :) H2SeO3 (aq) ==> 2H+(aq) + SeO3=(aq)
Monday, February 5, 2007 at 9:25am by bertie
use the properties of sodium cyanide described above to deduce the type of bonding that holds this compound together, explaining in 1 or 2 short sentences how you arrived at your conclusions. Write a balanced chemical equation for the reaction that occurs when sodium cyanide ...
Wednesday, March 7, 2007 at 5:12pm by Pedro
Sodium cyanide NaCN is a solid which melts at 564C to give a liquid that conducts electricity, It also dissolves in water to give a conduction solution. Deduce the type of bonding that holds the compound together and why? Write a balanced chemical equation for the reaction ...
Monday, March 12, 2007 at 1:07pm by Anthony
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. 3. Using the ...
Saturday, March 17, 2007 at 10:58pm by Josh
Posted by Josh on Saturday, March 17, 2007 at 10:58pm. How many grams of hydrochloric acid are required to react completely with 4.30g of zinc? How many molecules of gas will be produced? For Further Reading science - DrBob222, Saturday, March 17, 2007 at 11:07pm 1. Write the ...
Sunday, March 18, 2007 at 2:37am by Josh
A) Write a balanced chemical equation for the reaction between sulfuric acid and potassium hydroxide. I got H2SO4 + KOH ---> H2OH + KSO4 B) Write the ionic equation for the reaction. H2 + S2O4-2 + K + OH- ---> H2 + OH + K2SO4-2 C) Write the net ionic equation I'm not ...
Thursday, March 22, 2007 at 3:10pm by jon
How many moles of propane are expected from the complete reaction of 82.8 g of propene? How many grams of propane are expected from the complete reaction of 101 g of propene? Kyle-- Here is a problem I worked last night for Kira (about half way down the page). It should give ...
Thursday, April 5, 2007 at 11:58pm by Kyle
Write a balanced chemical equation for the combustion of trioleylglycerol. The molecular formula is C57H110O6.
Tuesday, January 22, 2013 at 6:09pm by Timofey
Propane (C3H8) burns in oxygen to produce carbon dioxide and water vapor. The balance equation for this reaction is C3H8 + 5O2 ----> 4H20 + 3CO2. What volume of carbon dioxide id produced when 2.8 L of oxygen are consumed? Here are the steps for solving stoichiometry ...
Friday, April 27, 2007 at 2:34pm by Katie
Write a balanced chemical equation for the combustion of trioleylglycerol. molecular formula C57H110O6
Tuesday, January 22, 2013 at 4:43pm by Timofey
write a balanced chemical equation for the following reaction including states not complete; no question.
Monday, July 30, 2007 at 3:11am by walter