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Based on the balanced equation
C2H4 + 3O2 → 2CO2 + 2H2O
calculate the number of excess reagent units remaining when 84 C2H4 molecules and 270 O2 molecules react?
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric?
A student traces of brown deposite during the KMnO4 (NH4)2Fe(SO4)2 titration and quickly add more H2SO4 and continued his titration?Suggest what wil happen and why.
Determine how many milligrams of H 2 O are present in sample If the freezing point of 100.0 grams of sample of 2-methyl-2-propanol =24.59C, (2methyl-2propanol has Kf=4.68Ckg/mol
When sodium reacts with water, 255 mL of hydrogen gas forms along with sodium hydroxide. What mass of sodium is needed for this reaction?
what is the corresponding pressure difference between points A and B, in mmHg. At which point (A or B) is the pressure higher, and why? The temperature is 60 °F throughout
The molarity (moles/L = M) of a solution of 4.0 g NaOH in a total volume of 100.0 mL (or 40 g in 1.0 L) is what?
an aerosol spray can with a volume of 270 ml contains 3.2 g of propane gas propellant. what is the pressure in the can at 20 c.
Determine the pressure change when a constant volume of gass at 1.00 atm is heated from 20.0 C to 30.0C.
Carbon sequestration technologies are being actively explored by researchers as methods to remove CO2 from the atmosphere, thereby diminishing the greenhouse effect.
14 g of Si reacts with 16 g of O to produce SiO2, the only product, with no reactant left over. How much SiO2 would be produced from 34 g of Si and excess O?
How many moles of HF (Ka = 6.8 10-4) must be present in 0.165 L to form a solution with a pH of 2.25?
how does the ability of permanganate (VII) ( when being reduce to Mn2+) to oxidize aqueous chloride , bromide or iodide ions change?
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