How is the number of neutrons in the nucleus of an atom calculated?
a. add the number of ele...
How is the number of neutrons in the nucleus of an atom calculated?
a. add the number of electrons and protons together.
b. subtract the number of electrons from the number of protons.
c. subtract the number of protons from the mass number.
d. add the mass number to the number of electrons.
Answers: 3
Chemistry, 23.06.2019 01:00, Zachgrainger4436
You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use
Answers: 1
Chemistry, 23.06.2019 01:30, jonmorton159
At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.
Answers: 1
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