Chemistry, 11.06.2021 20:20 student0724
An ion has 38 protons, 36 electrons, qnd 40 neutrons, what is its mass #?
Answers: 3
Chemistry, 21.06.2019 19:30
If the root word engage means βto connect with something,β what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal
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Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
Chemistry, 22.06.2019 21:00
What is the chemical formula for the compound formed between sodium and flour one
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Chemistry, 22.06.2019 22:30
What is a number added in front of a formula in order to balance the equation
Answers: 1
An ion has 38 protons, 36 electrons, qnd 40 neutrons, what is its mass #?...
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