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1. Sodium is slightly less reactive than calcium. Forecast the outcome of the subsequent reactions:
Na + H2O =
Na + O2 =
Na + Ca2+ =
2. Which is more reactive Fe2+ or Fe3+,and why?
What is the minimum amount of energy from the sun required to produce 5 g of glucose in this way? ?Hf of glucose is -1260 kJ/mol.
Explain what happens to the atomic number of a nucleus when positron emission occurs
C6H5OH(s) + 7O2(g) --> 6CO2(g) + 3H2O(g) A 2.000 gram sample of pure phenol, C6H5OH(s), is completely burned according to the equation above.
it is found that the concentration of Pb2+ in a saturated solution of lead bromide is 1.2x10^-2M. what is the ksp for PbBr2
What weight of potassium formate should be added to make 900 mL of a pH 4.00 buffer solution
a .6004-g sample of nicu condenser tubing was dissolved in acidand diluted to 100.0 ml in a volumetric flask. titration
Experimentally observed facts have led to the establishment of rules used to predict the solubility of common compounds in water. The rules can be stated as follows: Compounds that contain , , , and are always soluble with no particular exceptions..
When you react ammonia with a halogenated alkane, will you get only one organic product?
A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentration of H+, CH3COO-, and CH3COOH at equilibrium. Ka for acetic acid= 1.8x10^-5.
A compound contain 60.87% carbon, 4.38% hydrogen, and 34.75% oxygen then determine its empirical formula?
silver chlorideagcl often used in silver plating contains 75.27 of silver. compute the mass of agcl essential to plate
as we know many volatile substances are present in earths atmosphere in trace amounts. the given quantities of these
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