B. number of neutrons
Chemistry, 31.01.2021 23:30 ZayBoogie4771
What differentiates the isotopes of an element?
A. number of protons
B. number of neutrons
C. number of electrons
D. atomic number
Answers: 1
Chemistry, 21.06.2019 17:30
Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?
Answers: 3
Chemistry, 21.06.2019 18:30
Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
Answers: 1
Chemistry, 21.06.2019 23:30
Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.
Answers: 2
Chemistry, 22.06.2019 05:20
Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally
Answers: 1
What differentiates the isotopes of an element?
A. number of protons
B. number of neutrons
B. number of neutrons
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