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Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.
Explain the valences for each, showing what may happen to the electronic structure in each case
Provide the following information for a titration analysis involving a titrant and titrand, where the titrand is a weak, diprotic acid (Ka1 = 1.00 x 10-4; Ka2 = 1.00 x 10-8; Vol=0.01000 L; FH2A=0.1000 M) and the titrant is a strong monoprotic base..
The temperature of the calorimeter increases from 19.7C to 20.6C. If under constant volme conditions the heat of combustion of glucose is -2805 kj/mol, calculate the total heat capacity of calorimeter.
What point defects are possible for Al2 O3 as an impurity in MgO? How many Al3+ ions must be added to form each
The decomposition of N2O5 in CCL4 is a first order reaction. If 2.56 mg of N2O5 is present initially and 2.50 mg is present after 4.26 minutes at 55 degrees Celsius what is the value of the rate constant K?
Calculate the energy per photon of electromagnetic radiation, for a photon having a frequency of 5.16 X 10^19 Hz (h = 6.626x10^-34 J s):
The mass of an Argon atom is more than that of a Helium atom. Does that mean that because of Argon has larger mass, it exerts a higher pressure on the walls of container than Helium at the same volume, molar density and temperature? Give explanati..
Copper has a specific heat of 0.092 cal/(g·°C). When 52.7 cal of heat is added to a piece of copper, the temperature increases from 22.4°C to 38.6°C. What is the mass of the piece of copper
an element t burns in air with a blue flame forming white fumes which dissolve in water to form a solution that turns blue litmus paper red(t is not the actual symbol)
When 189.4 g of ethylene (C2H4) (molar mass= 28.05 g/mol) burns in oxygen to give carbon dioxide and water, how many grams of CO2 (molar mass= 44.01 g/mol) are formed? C2H4 + 3O2 --> 2 CO2 + 2H2O
calculate the minimum volume of 1.00M HCL required to react completely with 5.00g of Ca ?
How many grams of Br2 would there be in 8.00 moles of Br2?
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