Chemistry, 13.05.2021 02:50 melanastormes92
Which statement describes a reason scientists might use a glider instead of a submarine with a crew to study the bottom of an ocean trench?
a. high pressure there could crush a submarine
B. Sunlight's causes temperatures there to rise dangerously
C. The high of density of plant growth there is a difficult to navigate
D. The low salinity there could harm passengers
Answers: 3
Chemistry, 21.06.2019 22:30
Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.
Answers: 2
Chemistry, 22.06.2019 00:00
The p sub shell can hold up to 8 electrons in an atom. true or false?
Answers: 1
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
Which statement describes a reason scientists might use a glider instead of a submarine with a crew...
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