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A proton is approxomately (a) 200 times larger than electron (b) 2000 times larger than electron (c) 200 times smaller than electron (d) 2000 times smaller than electron (27) which are isotopes? An atom that has an atomic number of 34 and a mass isotope of an atom that has (a) an atomic number of 32 and a mass number of 76 (b) an atomic number of 34 and a mass number of 80 (c) 42 neutron and 34 protons (d) 42 protons and 34 neutrons
A 100-mL sample of the juice took 9.58 of the iodine solution to reach a starch end point. What is the concentration of Vitamin C.
Although the formula of this new chemical is a trade secret, it can be revealed that the formula for Herbigon is X-acetate (XCH3COO, where "X" represents the top-secret cation of the salt).
is it possible to determine the amount of impurity formed in aspirin with excess sodium salt. aspirin had a melting point range of 113-135 degrees celsius. that is all the information given. any other info can be used.
Why is it important to not dilute an initial sample before it hasbeen loaded
relation between the energy of emitted alpha particles and the half-life for the radioactive decay.
potassium fluoride has a solubility of 92g of KF in 100 g of H2O at 18 degrees C. which of the following are saturated solutions and unsaturated solutions at 18 degrees C: a)46 g of KF and 100 g of H2O. b)46 g of KF and 50 g of H2O. c)184g of KF a..
Compare the acid or base strength of the following compounds and explain your ordering by explaining in terms of the difference in the structure.
Liquid methanol (CH3OH) can be used as an alternative fuel in pickup and SUV engines. An industrial method for preparing it uses the catalytic hydrogenation of carbon monoxide
A piece of iron half-immersed in a sodium chloride solution will corrode more rapidly than a piece of iron half-immersed in pure water because
How many grams of thallium may be formed by the passage of 57.5 amps for 1.34 hours through an electrolytic cell that contains a molten
Complete the following reactions and state the dominant mechanism where indicated: (1S,2S)-1-bromo-1,2-diphenylpropane + NaOCH3 Methanol
At a certain temperature, the root mean square speed of CH4 molecules in 1610 km/h. What is the root mean square speed of CO2 molecules at the same temperature
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