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Define what kind of redox reaction each reaction below is. Identify the oxidizing and reducing agentsA). 2 Ca(s) + O2(g) ---> 2 CaO(s)B). 2 Al (s) + 6HCl(aq) ---> 3 H2(g) + 2AlCl3(aq)C). 2 HgO(s) ---> 2 Hg(l) + O2(g)D). C2H4(g) + 3 O2(g)---> 2 CO2(g) + 2 H2O(l)E). Si(s) + 2 Cl2(g) --->SiCl4(g)
The amount of heat needed to raise the temperature of 25 g of a substance by 15°C is 915 J. What is the specific heat of the substance?
How much heat is needed to melt 22.4g of ice at zero degrees celcius to form liquid water at zero degress celcius?
State half-reactions for all three halogens that show what would happen if they acted as an oxidizing agent illustrate the electrons being lost or gained by the halogen
determine the second order rate constant from the initial concentration and half life.the half life of a second order
What is the rate constant for the reverse reaction at the same temperature?
considering an unbalanced equation given as ca3po42 h2so4 --gt caso4 h3po4 for the reaction of calcium phosphate with
a certain first-order reaction has a rate constant of 2.75 x 10-2 s-1 at 20 degrees c.nbsp what is the value for k the
What is the molar mass of the unknown gas. Elemental analysis of the unknown gas from Part A revealed that it is 30.45% N and 69.55% O. What is the molecular formula for this gas.
we will provide a standard solution of 0.100 m nacl and a solution of 20-fold diluted tonic water the unknown for your
A sample of gas with an initial volume of 27.6L at a pressure of 735 mmHg and a temperature of 309 K is compressed to a volume of 15.8 L and warmed to a temperature of 374 K.
Calculate the resulting concentration of triiodide ions in the acidified solution.
The solubility of AlF3 is 6.7 gms. of AlF3 per liter of solution. the density of a saturated AlF3 solution is 1grm per ml. the Ksp of AlF3 is
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