Answer:
C. 21%oxygen
Explanation:
Dry air contains 78.09% nitrogen, 20.95%oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
Bromelain separates the amino acids in the enzymes that cause browning by breaking the peptide bonds.
Explanation:
Enzymes speed up chemical reactions by lowering activation energy.
An enzyme from the stem of pineapple is called Bromelain also known as cysteine protease. It is obtained by cutting pineapple and filtering the juice of it.
Bromelain extract is a mixture of protein-digesting enzymes and several other substances in smaller quantities.
The monomers in Bromelain are numerous sub units of Sulfhydryl proteases. A free sulfyhydryl group of a cysteine amino acid side chain is required for function. By seperating proteins from amino acids the reaction that breaks up enzymes occurs.
I believe the correct answer from the choices listed above is the second option. The expression (6.0 x 104) (3.1 x 10-1) is equal to 1.9 x 10^4. We only have two significant figures from the starting expression that is why we rounded of the product from 1.86 to 1.9.
That is a bond between carbon and chlorine, as in chloro methane:
H3C-cl
i hope i helped you❤