Chemistry, 27.10.2020 21:10 martinez78
A sample of iodine is easiest to ship as a powder because it is
, making it easy to break into small pieces.
Helium is less
than the elements that make up the air we breathe, so a balloon filled with helium will float in air.
Plastic is a compound of nonmetallic elements, so its
properties make it a popular coating for electric wires to prevent the current from escaping.
Answers: 3
Chemistry, 22.06.2019 04:00
Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.
Answers: 1
Chemistry, 22.06.2019 08:30
How does the principle of electromagnetism explain the interaction between earthโs magnetic field and the solar wind?
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Chemistry, 22.06.2019 09:40
How many grams of aluminum will there be in 98g of al2o3?
Answers: 1
Chemistry, 22.06.2019 18:00
Answer asap need to be answered 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: 3
A sample of iodine is easiest to ship as a powder because it is
, making it easy to break into smal...
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