Scientifict notatino compresses numbers for easier work
example
1,200,000 can be written as 1.2 times 10^6
it makdes division easuer as well
answer is D
Answer:
B)
. six electrons in the triple bond of diatomic nitrogen
Explanation:
The three line in this Lewis dot structure represents the six electrons in the triple bond of diatomic nitrogen.
Nitrogen is made up of 7 electrons with 5 valence ones.
A lewis structure is made up of the symbol of the element surrounded by dot to represent the valence electrons.
In this nitrogen molecule, both species share 6 electrons. This makes each nitrogen atom isoelectronic with neon.
Answer:
I would use calorimetric to determine the specific heat and I would measure the mass of a sample
Explanation:
I would use calorimetry to determine the specific heat.
I would measure the mass of a sample of the substance.
I would heat the substance to a known temperature.
I would place the heated substance into a coffee-cup calorimeter containing a known mass of water with a known initial temperature.
I would wait for the temperature to equilibrate, then calculate temperature change.
I would use the temperature change of water to determine the amount of energy absorbed.
I would use the amount of energy lost by substance, mass, and temperature change to calculate specific heat.
Answer:
b.Proteins that are consumed in the diet are absorbed as individual amino acids following digestion.
Explanation:
Protein digestion begins in the stomach by enzyme called pepsin. Pepsin is secreted by pancreas of the internal body in the form of inactive enzyme called pepsinogen. However, due to the acidic nature ( Lower pH), pepsin is activated and this Pepsin digests the protein into the polypeptides.
Now, these polypeptides move to the duodenum where the pH is high that is basic in nature. However, in the small intestine, enzymes some of the such as aminopeptidase and dipeptidase digest the dipeptides or tripeptides into amino acids.
Hence the correct answer is B.