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In the striking of a match, energy is supplied in the form of striking. The reactant, KClO3, potassium chlorate on the match head is struck with P4, on the match box. Thus, this reaction begins only after a collision between the reactants. So this is an endothermic reaction, and most reactions occur when two reactants collide with each other.
Describe 3 types of marine life and how they are affected by the increase of acidity in the oceans.
If 3.0 Ml of distilled water is added to 2.0 ml of 0.35M CoCl2 solution, what is the concentration of the resulting solution.
If 4.5 of ammonium chloride were dissolved in 200 L of water what would be the ammonium chloride concentration in mg/L
that of the Ce(III)/Ce(IV) system is +1.44V, calculate the potential at the following points during the titration of 100 ml of 0.05M Fe(II) with 0.05M cerium (IV)
ethoxypropan-2-ol can be made by the ring opening of an epoxide when sodium ethoxide in ethanol-water is used. A) Draw the skeletal structure of (R)-1-ethoxypropan-2-ol.
Use the angular overlap method to calculate the energies of both ligand and metal orbitals for trans {Cr(NH3)4Cl2}+, taking into account that ammonia is a strong sigma donor ligand than chloride , but chloride is a stronger pie donor. use the 1 an..
toothpaste contains 0.24% by mass sodium flouride used to prevent dental cavities. One tube contains 119g of toothpaste. How many moles of NaF are in the tube?
A soluble iodide was dissolved in water. Then an excess of silver(I) nitrate, AgNO3 was added to completely precipitate out all the iodide ion as silver(I) iodide, AgI. if 1.545 grams of soluble iodide gave 2.185g of silver(I) iodide, then
An object has a mass of 50.0g. When it is dropped into a graduated cylinder containing 15mL of water, the water level in the cylinder rises to 32mL.
A buffer solution is prepared by mixing 20.0 mL of 0.032 M benzoic acid C6H5COOH(aq) solution with 25.0 mL of 0.022 M NaC6H5COO(aq). What is the pH of the buffer produced? (Ka of benzoic acid = 6.2x10^-5).
As2O3(s) + NO3-(aq) --> H3AsO4(aq) + N2O3(aq) (acidic solution) what is the oxidizing and reducing agent?
Which of the following molecules would be expected to be MOST water soluble?
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