Chemistry Questions

I need to find the equilibrium constant for this reaction.
@kaylay23 • about 12 hours ago • Chemistry
natural gas or methane is important fuel. combustion of one mole of methane releases 802.3 kilojoules of energy. how much energy does that represent in kilocalories (1 cal=4.184 J)
@kaylay23 • about 12 hours ago • Chemistry
A group of students collected 125 empty aluminum cans to take to the recycling center. If 21 cans make 1.0 lb aluminum, how many liters of aluminum (D=2.70 g/cm3 ) are obtained from the cans?
@aramb9 • about 20 hours ago • Chemistry
I am not sure how to do this question from my chemistry homework. Please help!
@ameliec1 • 1 day ago • Chemistry
If the volume of gasoline vapor and air in an automobile engine cylinder is reduced to 1/12 of its original volume before ignition, by what factor does the pressure in the cylinder increase? (Assume there is no change in temperature.)
@shelovejoya1 • 1 day ago • Chemistry
Match the appropriate ions to the given representations. The scale used for the representations is only approximate.
@shelovejoya1 • 1 day ago • Chemistry
Gallium arsenide, GaAs, is used in the red lasers of bar-code readers. Write the full electron configuration of a ground-state atom of gallium (Z = 31) and a ground-state arsenic atom (Z = 33).
@shelovejoya1 • 1 day ago • Chemistry
ln (x) = 0.38 what is ln (x^2)?
@ejs39 • 1 day ago • Chemistry
Given the calculation (13.00 dm + 130. mm)/5.3753 dm = What is the answer reported to the correct number of significant figures?
@aramb9 • 1 day ago • Chemistry
Write a net ionic equation for the reaction that occurs when excess nitric acid (aq) and sodium sulfite (aq) are combined. Note: Sulfites follow the same solubility trends as sulfates the question indicates to use H3O+ for the hydronium ion but I am not sure how to incorporate that into the equation
@ariellam3 • 2 days ago • Chemistry → Net Ionic Equations
Write a net ionic equation for the reaction that occurs when excess hydrochloric acid (aq) and manganese(II) sulfide are combined.
@ariellam3 • 2 days ago • Chemistry → Net Ionic Equation
Correct the following number to two significant figures. 0.0099872
@aramb9 • 2 days ago • Chemistry → Significant Figures
Choose the most appropriate reagent(s) for the conversion of 2-methyl-1-propanol to 2-methyl-1-tosyloxypropane.
@dasha • 3 days ago • Chemistry
Which of the following alcohols is oxidized to a ketone by a ketone by chromic acid
@dasha • 3 days ago • Chemistry
What is the major organic product of the following reaction?
@dasha • 3 days ago • Chemistry
Which one of these equations is a redox reaction? A) 2 Al(s) + 3 H2SO4(aq) → Al2(SO4)3(aq) + 3 H2(g) B) 2 KBr(aq) + Pb(NO3)2(aq) → 2 KNO3(aq) + PbBr2(s) C) CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2 HBr(g) D) H+(aq) + OH– (aq) → H2O(l) E) CO32– (aq) + HSO4–(aq) → HCO3– (aq) + SO42– (aq)
@madisonh201 • 3 days ago • Chemistry → Redox Reactions
When aqueous solutions of sodium carbonate and lead(II) nitrate are combined, solid lead(II) carbonate and a solution of sodium nitrate are formed. The net ionic equation for this reaction is:
@ariellam3 • 3 days ago • Chemistry → Net Ionic Equations
Does a reaction occur when aqueous solutions of magnesium nitrate and sodium hydroxide are combined? If so, what is the net ionic equation?
@ariellam3 • 3 days ago • Chemistry → Net Ionic Equations
When aqueous solutions of sodium acetate and nitric acid are mixed, an aqueous solution of sodium nitrate and acetic acid results. Write the net ionic equation for the reaction.
@ariellam3 • 3 days ago • Chemistry → Net Ionic Equations
Write a net ionic equation for the reaction:
@ariellam3 • 3 days ago • Chemistry → Net Ionic Equations