Chemistry, 30.10.2019 17:31 emmacox069
The isotope of an atom containing 40 proteins and 51 neutrons suddenly has two neutrons added to it what isotope is created?
a. antimony - 53
b. antimony - 93
c. zirconium - 93
d. zirconium - 53
Answers: 3
Chemistry, 21.06.2019 19:00
Consider the point on the plot where 10.0 g of naoh have been added. what amount of naoh, in moles, has been added? 0.308 mol fecl3 initially present
Answers: 1
Chemistry, 21.06.2019 22:00
Which of the following statements is true about planck’s law
Answers: 1
Chemistry, 22.06.2019 07:30
Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1
Answers: 1
Chemistry, 22.06.2019 23:30
The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams
Answers: 2
The isotope of an atom containing 40 proteins and 51 neutrons suddenly has two neutrons added to it...
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