112 Answered Questions for the topic Chemical reactions

Chemical Reactions Chemistry Solubility

02/04/15

Based on general trends in solubility, which of the following compounds is least soluble in hexane (CH3CH2CH2CH2CH2CH2CH3)?
Based on general trends in solubility, which of the following compounds is least soluble in hexane (CH3CH2CH2CH2CH2CH2CH3)?   - 1-proponal - 1-pentanol - 1-butanol - methanol - ethanol
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12/06/14

Chemistry, find standard heat of reaction of this reaction. Please help me understand how to do these problems
This question is about the reaction4HCl(g)+O2(g)-->2H20(g)+2Cl2(g)A) Using the values of ΔfH°, find the standard heat of the reaction of this reaction.B) Using average bond energies, estimate... more
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12/04/14

Chemistry Question, I need some help please
This question is about the reaction 4HCl(g)+O2(g)-->2H20(g)+2Cl2(g)A) Using the values of ΔfH°, find the standard heat of the reaction of this reaction.B) Using average bond energies, estimate... more
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11/21/14

Determine the concentration of a solution prepared by diluting 25.0 mL of a stock 0.188 M Sr(NO3)2 solution to 150.0 mL.
Help please explain I am trying to learn!!
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Chemical Reactions Chemistry Chemical Formula Molarity

11/13/14

Molarity of vinegar
HelloI am trying to work out the molarity of a standard store bought vinegar. i used 2g sodium hydroxide in 0.1M in 500ml.10ml vinegar diluted with 90g water.25 ml of vinegar solution used in... more
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11/07/14

How many grams of Lithium Nitrate are needed to make 250 grams of Lithium Sulfate?
Could someone please look over my work?  I had to research Stoichiometry as a self-study and I'm not sure if I'm on the right track.   The question is: How many grams of Lithium Nitrate are... more
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09/22/14

What is the net ionic equation when these compounds are combined/reacted?
I am having a really hard time understanding aqueous reactions and net ionic equations in chemistry. I would really appreciate some step-by-step instructions on these questions...    1) Consider... more
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Chemical Reactions Chemistry

09/14/14

How do you find the formula of a hydrate when given an impure substance?
ow do you find the formula of a hydrate when given an impure substance? Is there any procedure to find this out in a laboratory setting?
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Chemical Reactions

08/25/14

Does the following chemical formula represents polar molecules that would be soluble in H20 @ 4 degrees celsius?
Answer I think... C2H5OH (ethyalchol)
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Chemical Reactions Chemistry Molar Mass Stoichiometry

08/22/14

Chemistry Problems
1.) Elemental phosphorus reacts with chlorine gas according to the equation: P4(s)+6Cl2(g)→4PCl3(l) A reaction mixture initially contains 45.09g P4 and 131.1g Cl2.   Once the reaction has... more
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Chemical Reactions

07/20/14

help with chemical reaction
the maxium number of electrons that can be held in the valance shell of beryllium is 8.  is it true that it would lose electrons in a chemical reaction?   based on the above answer, if beryllium... more
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Chemical Reactions

04/29/14

Earth Science c/o chemical reaction
        2 H 2 + O 2 → H 2 0 (g) + heat                     Note:  the g after H20 indicates that the water is in gaseous state.     Is this an oxidation reaction?  why or why not?
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