Chemistry, 17.12.2020 08:30 krudmagreaner
A student listed the characteristics of chemical and nuclear reactions.
Chemical and Nuclear Reactions
C:
A change in atomic number of elements takes place
D:
The atomic number of elements remains the same
Which of these statements best explains the identity of Reaction D?
Olt is a nuciear reaction because the atomic number remains the same when the number of valence electrons changes.
Oit is a nuclear reaction because the atomic number remains the same when the particles are emitted from the nucleus.
Oit is a chamical reaction because the atomic number remains the same when the number of neutrons and protons changes.
Oit is a chemical reaction because the atomic number remains the same for all elernents while a rearrangement of atoms through bonding occurs.
Answers: 2
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Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.
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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 student listed the characteristics of chemical and nuclear reactions.
Chemical and Nuclear Reacti...
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