03/13/18

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide , 0.690 g of water and no other product
A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide , 0.690 g of water and no other products. A volume of 10.0 L (measured at... more
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03/12/18

How many miles of aluminum are needed to react with 50.0 grams of hydrogen?
Al+HCl=AlCl3+H2
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03/12/18

How is it possiable that a reaction can be both synthesis and redox
Chemsidbsjs. When’s d SJSU’s s shsndd
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03/12/18

What happens when borax is heated strongly
Explain with the help of a chemical equation
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03/12/18

What is the effect of increasing pressure and temperature on the equilibrium concentration of ammonia in Haber's process
2N2+3H2=2NH3 Enthalpy=+93.6  
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03/12/18

How do I solve this equilibrium problem?
2H2S (g)==> 2H2 (g)+S2 (g)   When heated, hydrogen sulfide has decomposes to the equation above. A 3.40 g sample of H2S (g) is introduced into an evacuated rigid 1.25L container. The sealed... more
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03/12/18

How do I solve this AP Chemistry problem on the reaction C (s)+H2O(g)==>CO (g)+H2 (g)?
CO (g) + H2(g) <--> C(s) + H2O (g) ∆H˚ = -131 kJA rigid container holds a mixture of graphite pellets (C(s)), H2O(g), CO(g), and H2(g) at equilibrium. State whether the number of moles of CO... more
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03/10/18

Chemical Formula for osmium (III) chlorate
I put Os3(Cl0)3 as an answer for the chemical formula for osmium (III) chlorate on my review and got it wrong. So all I can think is that it must be  Os(ClO3)3 or Os(ClO4)3 but why?
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03/10/18

Is the chemical formula for Gallium (I) Phosphide Ga3P or Gap3?
I thought it was just GaP, but I was wrong.  Cant figure out why it is GaP?
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03/10/18

word equatoon of Ethanol + Ethanotice Acid
EthaNolan + Ethanol Acid  
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03/10/18

You need 2 pounds of peaches in order to make peach ice cream. You bag of peaches weighs 19 ounces. How many pounds of peaches do you need to purchase?
recall their our 16 ounces in a pound
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03/09/18

Solubility equilbrium
If NaCl is added to a solution containing 0.01 Μ Cu+,0.01 Μ Ag+ and 0.01 Μ Au3+ ions;a. Which compound will precipitate first?b. When AuCl3 starts to precipitate, find [Ag+].c. When Cu2Cl2 starts... more
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03/08/18

How do I solve this problem on the reaction 4HCl+O2 <=>2Cl2+2H2O
4HCl+O2 <=>2Cl2+2H2O (all gases)   Equal numbers of moles of HCl and O2 in a closed system are allowed to reach equilibrium as represented by the equation above. Which of the following must... more
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03/08/18

How many hydrogen atoms are there in 3.50 grams of methane? Make sure to use X.XXEX atoms format
How do I do this conversion?
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03/08/18

How do I solve this equilibrium question?
2HI (g)==> H2+I2   A) Write the expression  for the equilibrium constant Kc for the reaction.   B) What is [HI] at equilibrium?   C) Determine the equilibrium concentrations of H2 and... more
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03/08/18

A 230g sample that contains copper sulfur and oxygen if it contains 78.9g Cu and 89.2g S. The rest is oxygen.
Percent Composition 
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03/08/18

Solubility equilbrium problem
A weighed amount of solid AgCl is ground up and thoroughly shaken with a liter of water until saturation. When the saturated solution is filtered, the residual solid AgCl is dried and weighed. If... more
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03/08/18

At the store clearance,a woman spent less then $200 on shirts that were labeled $15 each. How many shirts did she buy?
A.9  B.17 C.12 D.15
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03/08/18

HIV progressively weakens and destroys the immune system
true or false
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03/08/18

Solubility equilbrium
5C2O4 + 2MnO4 + 16H → 2Mn + 10CO2 + 8H2O If 4 mL of 0.001 Μ KMnO4 solution is used to react completely with 250 mL of saturated CaC2O4 solution according to the above reaction, what will be the Ksp... more
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03/08/18

Microliters
Calculate how many microliters of primary antibody you need to add to 150 μ l of blocking buffer to have a final dilution of 1:200 0 . How much would you need for 15ml of a 1:200 0 antibody solution?
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03/07/18

How do you convert 62 inches to yards,feet and inches?
 How to convert 62 inches to yards, feet and inches
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03/07/18

4NH3(g)+3 O2(g)=2N2(g)+6H2 O(g)
How many moles of water are produced when 14.8 moles of oxygen completely react?
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03/07/18

A 300 mL balloon containing the gases CO and CH4 has a total pressure of 450mm Hg. The partial pressure of CO is 140mm HG. What is the mole fraction of each gas
Chemistry problem 
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03/07/18

Put the following gases in order of increasing molecular speed Ne. N2. C4H10. NO2. CO2.
This is a chemistry question and I have to put each gas in order.
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