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Which of the following are ways that catalysts can speed up reactions rates? You must check all answers that apply.
A) Speedup the reaction without changing k.B) Decrease the energy of activation.C) Change the path of the reaction.D) Increase the collision frequency.E) Increase the activation energy.
My first try was A,B,C,D and my second try was B,C.
Methane reacts with oxygen to form carbon dioxide and water as shown:. determine how much methane must have reacted If 72 grams of water is formed,?
a 35.00 mL sample of NaOH solution is titrated to an endpoint of 14.76 mL 0.4122 M HBr solution. What is the molarity pf the NaOH solution?
what is the conjugate base of HPO4^2-? c)which acid has the weaker conjugate base? d)which acid has the stronger conjugate base? e)which acid produces more ions
If 29.7 mL of 0.0205 M KOH us required to completely neutralize 25.0 mL of a HC2H30 solution. What is the molarity of the acetic acid solution
Given the thermodynamic data in the data table below, calculate the equilibrium constant for the reaction: 2SO2 (g) + O2(g/0 2SO3(g), Substance Delta Hf (kj/mol) Delta S (J/K *mol)
A solution of barium nitrate contains 6.12 g per liter of solution. How many grams of barium nitrate is contained
Which of the following is NOT true about the thermodynamic standard state?
Compounds with nearly identical molar masses often have very different physcial properties. Choose the compound with the lower value. Solubility in water: di-ethylether or 1-butanol. Why is it lower?
4.20 g of a chloride-containing compound of Ti was obtained. What is the empirical formula of the chloride-containing compound
A studet determined the percentage KHP in an impure sample of KHP . a 3.150g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration.1) calculate the number of moles of NaOH required for this titration
Draw the base pairing between 8-oxoguanine and cytosine and 8-oxoguanine and adenine. Use single bonds to represent hydrogen bonds.
the heat of vaporization of benzene, C6H6, is 30.8kJ/mol at its boiling point of 80.1C. How much heat is required to vaporize 102g benzene at its boiling point?
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